Download Liebert eXM 120-200kVA, 50/60Hz, User Manual (R09/15) (SL

Liebert® eXM™
User Manual–120-200kVA, 50/60Hz
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
GLOSSARY OF SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.0
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.0
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1
Initial Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.1
Storing for Delayed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3
UPS Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1
2.3.1
2.3.2
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Positioning the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4
Considerations in Moving the Liebert eXM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5
Mechanical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5.1
2.5.2
2.5.3
2.5.4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
11
11
12
2.6
Auxiliary Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7
Liebert Power Module Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8
Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9
Static Bypass Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.0
ELECTRICAL CONNECTIONS—UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.1
Power Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2
External Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1.1
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
Lug Size and Cable Rating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Rectifier and Bypass Input Supply of the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Fuses and Back-Feed Breaker Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protective Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17
17
18
20
20
22
24
26
26
3.3
Control Cables Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4
Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.3.1
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.5
Static Bypass Assembly Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Input Dry Contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert MBC Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Cabinet Interface Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO Input—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
31
32
32
33
Parallel Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
i
4.0
INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
5.0
OPTION INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1
Liebert IntelliSlot™ Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.2
Liebert IntelliSlot Web Card—SNMP/HTTP Network Interface Card . . . . . . . . . . . . . . . . . 38
5.2.1
Liebert IntelliSlot™ Unity Cards—IS-UNITY-LIFE, IS-UNITY-S, IS-UNITY-DP . . . . . . . . 38
5.3
Liebert IntelliSlot Web Card—Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.4
Liebert IntelliSlot™ Relay Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.4.1
5.4.2
Liebert IntelliSlot Relay Card Pin Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Liebert IntelliSlot™ Relay Card Jumper Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.0
OPERATOR CONTROL AND DISPLAY PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1
Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.2
Mimic Display Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.3
Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.4
Alarm Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.5
LCD Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.6
Navigation Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.7
LCD Menus and Data Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.8
Language Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.9
Current Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.10
UPS History Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.11
Types of LCD Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.11.1
6.11.2
6.11.3
6.11.4
6.12
Opening Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS Help Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen Saver Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
52
52
53
53
Pop-Up Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.12.1
6.12.2
6.12.3
6.12.4
6.12.5
6.12.6
6.12.7
6.12.8
6.12.9
From Bypass to Inverter Mode With Power Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . .
From Inverter to Bypass Mode With Interruption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Capacity Test Confirmation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Self-Test Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Equalize Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Refresh Charge Aborted, Condition Not Met . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enter Control Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53
53
54
54
54
54
54
54
54
7.0
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
7.1
Liebert eXM Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.2
UPS Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
7.2.1
7.2.2
7.2.3
Startup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Startup in ECO Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Switching Between UPS Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.3
UPS Battery Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.4
Switching the UPS from Normal Operation to Maintenance Bypass . . . . . . . . . . . . . . . . . . 62
7.5
Switching the UPS from Maintenance Bypass to Normal Operation . . . . . . . . . . . . . . . . . . 64
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7.6
De-Energize Liebert eXM with Maintenance Bypass Cabinet. . . . . . . . . . . . . . . . . . . . . . . . 65
7.7
De-Energize Liebert eXM Without Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . . 66
7.8
De-Energize a Liebert eXM Parallel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.9
Re-Energize a De-Energized Liebert eXM Parallel System . . . . . . . . . . . . . . . . . . . . . . . . . . 67
7.10
De-Energize and Isolate a Single Liebert eXM in a Parallel System . . . . . . . . . . . . . . . . . . 68
7.11
Re-Energize a Single Liebert eXM in a Parallel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7.12
Place a Liebert eXM Parallel System in Maintenance Bypass (with SKRU Interlock) . . . . 69
7.13
Place a Liebert eXM Parallel System Online from Maintenance Bypass (with SKRU
Interlock). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.14
Emergency Shutdown With EPO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.15
Auto Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7.16
Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions . . . . . . . . . . 71
7.17
Battery Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7.17.1 Battery Undervoltage Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7.17.2 Battery End-of-Discharge (EOD) Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
7.19
Static Bypass Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.0
SPECIFICATIONS AND TECHNICAL DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.1
Conformity and Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.1.1
ENERGY STAR® Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.2
UPS Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
8.3
UPS Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.0
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9.1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9.2
Limited-Life Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
9.3
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
9.3.1
9.3.2
9.3.3
Record Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.4
Detecting Trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.5
Reporting a Problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.6
Corrective Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.7
Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
iii
FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
Figure 24
Figure 25
Figure 26
Figure 27
Figure 28
Figure 29
Figure 30
Figure 31
Figure 32
Figure 33
Figure 34
Figure 35
Figure 36
Figure 37
Figure 38
Figure 39
Figure 40
UPS dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable entry locations, 120-140kVA model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable entry locations, 160-200kVA model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabinet arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert power module assembly indicators and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Module, front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Static Bypass Assembly connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single UPS block diagram—Dual input, single source configuration, without bypass cabinet . .
Single UPS block diagram—Dual input, single source configuration with MBC . . . . . . . . . . . . .
Input busbars—Liebert eXM 120-200kVA frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual input back-feed breaker wiring when maintenance bypass cabinet not used . . . . . . . . . . .
Ground and neutral busbar connections—120-200kVA frame busbars. . . . . . . . . . . . . . . . . . . . .
Control Module connections to display cabinet and options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary terminal block detail (control module front panel). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output dry contacts and EPO wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet interface—J22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO wiring and signal names for J2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single UPS Remote Emergency Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parallel cable wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS dimensions—front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS main components—typical 120-200kVA unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS cable connections—120-200kVA frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert IntelliSlot Web card display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin location and numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jumper location and numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview of control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mimic display indicators location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control button layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alarm buzzer location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sections of the LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Language selection screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Date and time screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
History log records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opening display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Screen saver window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
One-line diagram, single-input UPS with 3-breaker maintenance bypass cabinet and
panelboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 41 Typical configuration for single UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 42 Air filter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
Table 17
Table 18
Table 19
Table 20
Table 21
Table 22
Table 23
Table 24
Table 25
Table 26
Table 27
Table 28
Table 29
Table 30
Table 31
Table 32
Table 33
Table 34
Table 35
Table 36
Table 37
Table 38
Table 39
Table 40
Table 41
UPS weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Busbars (for power wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal block with compression lugs (for control wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input dry contacts—J26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output dry contact relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert BDC interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery cabinet interface—J22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EPO input contact relays—J2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liebert eXM communication options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Relay card pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jumper connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Descriptions of UPS operator control and display panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mimic display status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Icons for navigation keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS menus and data window items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mimic indicators after initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mimic indicators for normal mode operation with battery breaker open . . . . . . . . . . . . . . . . . . .
Mimic indicators for normal mode operation with battery breaker closed . . . . . . . . . . . . . . . . . .
Battery DC intermediate circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS mechanical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS currents and terminals—Input, single-input unit, 208V operation . . . . . . . . . . . . . . . . . . .
UPS currents and terminals—Input, dual-input unit, 208V operation. . . . . . . . . . . . . . . . . . . . .
UPS currents and terminals—Bypass, dual-input unit, 208V operation . . . . . . . . . . . . . . . . . . .
UPS currents and terminals—Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications for customer-supplied external DC source for Liebert eXM UPS. . . . . . . . . . . . . .
Rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverter output to critical load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery DC intermediate circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC/AC efficiency, loss and air exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended lug sizes (Compression Type) M12, 1/2" bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Busbars (for power wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal block with compression lugs (for control wiring) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended test equipment and tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazardous substances or elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UPS status messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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vi
Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of the
Liebert eXM.
Read this manual thoroughly, paying special attention to the sections that apply to your installation,
before working with the UPS. Retain this manual for use by installing personnel.
A properly trained and qualified electrical contractor should oversee the installation of the
equipment.
The Liebert eXM cannot be put into operation until it is commissioned by the manufacturer or
authorized engineer. Otherwise, human safety may be endangered and damage to the UPS will not be
covered by the warranty.
The Liebert eXM is designed for commercial and industrial uses and cannot be used as life support
equipment.
! WARNING
Risk of moving heavy equipment and electric shock. Can cause equipment damage, injury and
death.
Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to
personnel. The Liebert eXM’s weight ranges from 1221 to 1516 lb. (533 to 688kg).
Locate the center of gravity symbols before handling the UPS.
Test lift and balance the
cabinet before transporting it. Never tilt the equipment more than 15 degrees from vertical.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
Extreme caution is required when performing maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages.
Check for voltage with both AC and DC voltmeters prior to making contact.
! AVERTISSEMENT
Risque lors du déplacement de l’équipement lourd et de décharge électrique pouvant
entraîner des dommages matériels, des blessures et même la mort.
Faites preuve d’une extrême prudence lors de la manutention des armoires ASC afin d’éviter
de les endommager ou de blesser le personnel. L’armoire Liebert eXM pèse de 1221 à 1516 lb
(de 533 à 688 kg).
Repérez les symboles de centre de gravité avant déplacer l’armoire ASC. Faites des essais de
levage et d’équilibre avant de transporter l’armoire. N’inclinez jamais l’équipement à plus de
15 degrés à la verticale.
En cas d’incendie associé à du matériel électrique, n’utilisez que des extincteurs à dioxyde de
carbone ou homologués pour la lutte contre les incendies d’origine électrique.
Les opérations d’entretien requièrent une extrême prudence.
Soyez toujours conscient du fait que le système ASC contient des tensions c.c. et c.a. élevées.
Vérifiez les tensions avec des voltmètres c.a. et c.c. avant d’établir tout contact.
1
Liebert® eXM™
Important Safety Instructions
! WARNING
Risk of electric shock. Can cause equipment damage, injury and death.
As with other types of high power equipment, dangerous voltages are present within the UPS
and battery enclosure even after input power has been disconnected. The risk of contact with
these voltages is minimized as the live component parts are housed behind a metal panel.
Further internal safety screens make the equipment protected to IP20 standards. Never
remove panels or covers or open doors that will expose internal components to contact.
Read and follow all warnings, cautions and safety and operating instructions to avoid serious
injury or death from electric shock. No risk exists to any personnel when operating the
equipment in the normal manner, following the recommended operating procedures.
All equipment maintenance and servicing procedures involve internal access and should be
carried out only by trained personnel.
! AVERTISSEMENT
Risque de décharge électrique pouvant entraîner des dommages matériels, des blessures et
même la mort.
À l’instar des autres types d’équipement haute puissance, des tensions dangereuses sont
présentes à l’intérieur de l’armoire ASC et du châssis de batteries même après le
débranchement de l’alimentation d’entrée. Le risque de contact avec ces tensions est diminué,
car les parties de composants sous tension sont abritées derrière un panneau métallique.
D’autres écrans de sécurité internes protègent l’équipement en conformité avec les
normes IP20. Ne retirez jamais les panneaux ou les couvercles et n’ouvrez pas les portes
donnant accès aux composants internes avec lesquels vous pouvez entrer en contact.
Veuillez lire et suivre l’ensemble des avertissements, des mises en garde et des instructions
de sécurité et de fonctionnement afin d’éviter des blessures graves, voire la mort, pouvant être
causées par une décharge électrique. Il n’y a aucun risque pour le personnel lorsque
l’équipement est utilisé normalement, en suivant les procédures de fonctionnement
recommandées.
Toutes les procédures de réparation et d’entretien de l’équipement exigent un accès à
l’intérieur de l’armoire et devraient être menées uniquement par du personnel compétent.
Ground Leakage Currents
! CAUTION
Risk of electric shock from high leakage current. Can cause injury, property damage and
death.
EARTH CONNECTION IS ESSENTIAL BEFORE CONNECTING THE INPUT SUPPLY.
Earth leakage current exceeds 3.5 mA and is less than 1000 mA.
Transient and steady-state earth leakage currents, which may occur when starting the
equipment, should be taken into account when selecting instantaneous RCCB or RCD devices.
Residual Current Circuit Breakers (RCCBs) must be selected sensitive to DC unidirectional
pulses (Class A) and insensitive to transient current pulses.
Note also that the earth leakage currents of the load will be carried by this RCCB or RCD.
This equipment must be earthed in accordance with the local electrical code of practice.
Liebert® eXM™
2
Important Safety Instructions
! AVERTISSEMENT
Risque de décharge électrique due à un courant de fuite élevé pouvant causer des blessures,
des dommages matériels et même la mort.
IL EST PRIMORDIAL D’ASSURER UNE CONNEXION DE TERRE AVANT DE
BRANCHER L’ALIMENTATION D’ENTRÉE.
La fuite à la terre est supérieure à 3,5 mA et inférieure à 1 000 mA.
Vous devez tenir compte des fuites de courant transitoires et permanentes à la terre,
susceptibles de se produire au démarrage de l’équipement, lors de la sélection des dispositifs
DDFT instantanés.
Vous devez sélectionner des disjoncteurs différentiels de fuite à la terre (DDFT) sensibles aux
impulsions unidirectionnelles c.c. (classe A) et insensibles aux impulsions de courant
transitoires.
Notez également que les courants de fuite à la terre de la charge seront acheminés par ce
dispositif DDFT.
Cet équipement doit être mis à la terre conformément au code national de l’électricité.
! WARNING
Risk of electric shock. Can cause injury, property damage and death.
Under typical operation and with all UPS doors closed, only normal safety precautions are
necessary. The area around the UPS system should be kept free of puddles of water, excess
moisture and debris.
Special safety precautions are required for procedures involving handling, installation and
maintenance of the UPS system. Observe all safety precautions in this manual before
handling or installing the UPS system as well as during all maintenance procedures.
This equipment contains several circuits that are energized with high voltage. Only
test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with AC and DC voltmeters to ensure safety before making
contact or using tools. Even when the power is turned Off, dangerously high electric charges
may exist within the UPS.
All power and control wiring should be installed by a qualified electrician. All power
and control wiring must comply with the NEC and applicable local codes.
ONLY qualified service personnel should perform maintenance on the UPS system.
When performing maintenance with any part of the equipment under power, service
personnel and test equipment should be standing on rubber mats. The service personnel
should wear insulating shoes for isolation from direct contact with the floor (earth ground).
Never work alone, even if all power is removed from the equipment. A second person should
be standing by to assist and summon help in case an accident should occur.
3
Liebert® eXM™
Important Safety Instructions
! AVERTISSEMENT
Risque de décharge électrique pouvant causer des blessures, des dommages matériels et
même la mort.
Les précautions de sécurité habituelles suffisent lorsque le système ASC est en mode de
fonctionnement normal et que toutes les portes sont fermées. La zone entourant le système
ASC doit être exempte de flaques d’eau, d’humidité excessive et de débris.
Des précautions de sécurité spéciales sont requises pour les procédures associées à la
manutention, à l’installation et à l’entretien du système ASC. Observez toutes les précautions
de sécurité décrites dans le présent manuel avant de manipuler ou d’installer le système ASC,
ainsi que pendant toutes les procédures d’entretien.
Cet équipement comporte plusieurs circuits à haute tension. Seuls des équipements d’essai
conçus pour le dépannage doivent être utilisés. Cette mise en garde couvre notamment les
oscilloscopes. Utilisez toujours des voltmètres c.a. et c.c. pour vérifier les tensions avant
d’établir un contact ou d’utiliser des outils. Des tensions dangereusement élevées peuvent
demeurer dans le système ASC même une fois l’alimentation coupée.
Tous les câbles d’alimentation et de contrôle doivent être installés par un électricien qualifié.
Tous les câbles d’alimentation et de contrôle doivent être conformes au Code national de
l’électricité des États-Unis (NEC) et celui du Canada, ainsi qu’aux codes locaux en vigueur.
L’entretien du système ASC ne doit être confié qu’à des professionnels qualifiés.
Les responsables de l’entretien et l’équipement d’essai doivent reposer sur des tapis de
caoutchouc lors de toute intervention sur une pièce d’équipement sous tension. Les
responsables de l’entretien doivent porter des chaussures isolantes pour prévenir tout contact
direct avec le plancher.
Ne travaillez jamais seul, même si toute l’alimentation d’entrée est coupée de l’équipement.
Une seconde personne devrait toujours être présente pour porter assistance ou chercher de
l’aide en cas d’accident.
! WARNING
Failure to follow adequate grounding procedures can result in electric shock hazard to
personnel, or the risk of fire, should a ground fault occur.
All operations described in this section must be performed by properly trained and qualified
electricians or technical personnel. If any difficulties are encountered, contact Emerson
Network Power. See the back page of this manual for contact information.
! AVERTISSEMENT
Le non-respect des procédures de mise à la terre peut entraîner des risques d’électrocution du
personnel, ou des risques d’incendie en cas de défectuosité de la mise à la terre.
Toutes les opérations décrites dans cette section ne doivent être effectuées que par des
électriciens ou des techniciens professionnels dûment formés et qualifiés . En cas de
difficultés, communiquez avec Emerson Network Power. Pour obtenir les renseignements de
contact, consultez la dernière page de ce manuel.
NOTICE
Risk of improper ground connection. Can cause equipment damage.
Ground connection is essential before connecting the input supply. This equipment must be
grounded in accordance with local electrical codes. Maximum load must not exceed that
shown on the UPS rating label.
NOTICE
Risk of improper electromagnetic shielding. Can cause radio communication interference.
This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J
of the FCC rules. These limits provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates radio frequency energy and,
if not installed and used in accordance with this instruction manual, may cause harmful
interference to radio communications. This unit is not designed for use in a residential area.
Operation of this unit in a residential area may cause harmful interference that the user is
solely responsible for correcting.
Liebert® eXM™
4
Glossary of Symbols
GLOSSARY OF SYMBOLS
Risk of electrical shock
!
Indicates caution followed by important instructions
AC input
AC output
i
-
Requests the user to consult the manual
+
Indicates the unit contains a valve-regulated lead acid battery
PbH2SO4
R
Recycle
DC voltage
AC voltage
Equipment grounding conductor
Bonded to ground
5
Liebert® eXM™
Introduction
1.0
INTRODUCTION
The Liebert eXM UPS is a fixed-capacity, transformer-free, online uninterruptible power system with
208/120V input and 208/120V output capability. The Liebert eXM can operate with either a 50 or
60Hz input and provide a matching output frequency conversion.
Optional Maintenance Bypass and Parallel cabinets are available.
The Liebert eXM provides continuous, high-quality AC power to business-critical equipment, such as
telecommunications and data processing equipment. The Liebert eXM supplies power free of the
disturbances and variations in voltage and frequency common to utility power, which is subject to
brownouts, blackouts, surges and sags.
The Liebert eXM utilizes the latest in high-frequency, double-conversion pulse width modulation
(PWM) technology and fully digital controls to enhance its reliability and increase the ease of use.
The 120-200kVA/kW Liebert eXM requires external batteries to support the load when utility power
is not present. For ancillary cabinets, refer to 2.6 - Auxiliary Cabinets.
Liebert® eXM™
6
Installation
2.0
INSTALLATION
This section describes the Liebert eXM’s environmental requirements and mechanical considerations
that must be taken into account when planning the positioning and cabling of the UPS equipment.
Because each site is unique, this section presents a guide to general procedures and practices that
should be observed by the installing engineer, rather than step-by-step installation instructions.
NOTICE
Risk of improper installation. Can cause equipment damage.
Do not apply electrical power to the UPS equipment before the commissioning engineer
arrives at the installation site.
The UPS must be installed by a properly trained and qualified engineer in accordance with
the information contained in this chapter. All the equipment not referred to in this manual is
shipped with details of its own mechanical and electrical installation information.
NOTE
Three-phase, four-wire input power is required.
NOTE
Input power must be supplied to the Liebert eXM from a properly grounded Wye or Delta
source. The Liebert eXM is not for use with impedance grounded systems, corner-grounded
systems or high-leg Delta systems. For these applications, an isolation transformer must be
installed between the input power and the Liebert eXM.
2.1
Initial Inspections
1. While the Liebert eXM and ancillary cabinets are still on the truck, inspect the equipment and
shipping container for any signs of damage or mishandling. Do not attempt to install the system if
damage is apparent. If any damage is noted, file a damage claim with the shipping agency
immediately and contact Liebert Services at 1-800-LIEBERT to inform them of the damage claim
and the condition of the equipment.
2. Compare the contents of the shipment with the bill of lading. Report any missing items to the
carrier and your local Emerson representative immediately.
3. Check the product label on the back of front door and confirm the contents match the UPS model,
capacity and main parameters that were ordered.
2.1.1
Storing for Delayed Installation
If the equipment will not be installed immediately, it must be stored indoors where the humidity is no
higher than 90% and the temperature is no higher than 104°F (40°C). The storage area must protect
the Liebert eXM from excessive moisture (see 8.2 - UPS Environmental).
2.2
Preliminary Checks
2.2.1
Identification
The equipment supplied has an identification tag on the back of the main door listing the type and
size of the UPS.
7
Liebert® eXM™
Installation
2.3
UPS Location
2.3.1
Positioning the UPS
Choose a location for the UPS that offers:
• Easy connection to inputs, outputs and auxiliary equipment
• Enough space to service the UPS
• Air circulation sufficient to expel heat produced by UPS
• Protection against moisture and excessive humidity
• Protection against dust and other particulate matter
• Compliance with fire prevention regulations and practices
• Operating environment temperature of 74-80°F (23-27°C) for maximum battery life
2.3.2
Environmental Considerations
Before installing the Liebert eXM, verify that the UPS room satisfies the environmental conditions
stipulated in 8.2 - UPS Environmental, paying particular attention to the ambient temperature
and air exchange system.
The UPS unit should be installed in a cool, dry, clean-air environment with adequate ventilation to
keep the ambient temperature within the specified operating range 32°F to 104°F (0°C to 40°C).
For optimal UPS system performance and service life, maintain the operating temperature within the
range of 74-80°F, (23-27°C).
The Liebert eXM is cooled by internal fans. Cooling air enters the unit through the front of the unit
and is exhausted out the top. To permit proper air flow and prevent overheating, do NOT block or
cover the ventilation openings or blow air down onto the unit. The UPS requires 24 in. (610mm)
ventilation clearance above the unit.
See Table 34 for details on heat dissipation.
2.4
Considerations in Moving the Liebert eXM
Ensure that the UPS weight is within the designated surface weight loading (lb./ft2 or kg/cm2) of any
handling equipment. See Table 1 for the weights of various units.
The Liebert eXM may be rolled on its casters for short distances only. For longer distances, move the
UPS with a forklift or similar equipment to ease the relocation and to reduce vibration.
! WARNING
Risk of moving heavy unit. Can cause property damage, injury and death.
Ensure that any equipment that will be used to move the Liebert eXM has sufficient lifting
capacity. The Liebert eXM’s weight ranges from 1221 to 1516 lb. (554 to 688kg). See Table 1
for the weights of various units.
The UPS presents a tipping hazard. Do not tilt the Liebert eXM more than 15 degrees from
vertical.
The UPS is fitted with casters—Take care to prevent movement when unbolting the
equipment from its shipping pallet. Ensure adequate personnel and lifting equipment are
available when taking the Liebert eXM off its shipping pallet.
! AVERTISSEMENT
Le poids élevé de l’appareil peut entraîner des dommages matériels, des blessures et même la
mort.
Veillez à ce que les équipements utilisés pour déplacer le système eXM de Liebert possèdent
une capacité nominale suffisante. Le poids du système eXM de Liebert varie entre 554 et
688 kg (1221 et 1516 lb) sans les batteries. Reportez-vous au Tableau 1 pour connaître le
poids de l’appareil avec les batteries.
Le système ASC présente un risque de renversement. N’inclinez pas le système eXM de
Liebert à plus de 15 degrés de la verticale.
Comme le système ASC est équipé de roulettes, veillez à éviter les mouvements involontaires
lorsque vous déboulonnez l’équipement de sa palette d’expédition. Veillez à ce qu’un personnel
approprié et un dispositif de levage soient disponibles lorsque vous retirez le système eXM de
Liebert de la palette d’expédition.
Liebert® eXM™
8
Installation
! WARNING
Risk of heavy unit tipping over while being moved. Can cause property damage, injury and
death.
The casters are strong enough for movement across even surfaces only. Casters may fail if
they are subjected to shock loading, such as being dropped or rolled over holes in the floor or
obstructions. Such failure may cause the unit to tip over, injuring personnel and damaging
the equipment.
! AVERTISSEMENT
Le centre de gravité élevé de l’appareil présente un risque de renversement lors des
déplacements, peut entraîner des dommages matériels, des blessures et même la mort.
Les roulettes sont suffisamment résistantes pour le déplacement sur des surfaces planes
uniquement. Les roulettes peuvent être endommagées si vous les soumettez à des impacts,
notamment en cas de chute ou de passage sur des obstacles ou trous dans le plancher. Une
telle défaillance peut causer le renversement de l’appareil, qui risque de blesser le personnel
et d’endommager l’équipement.
Final Positioning
When the equipment has been finally positioned, ensure that the adjustable stops are set so that the
UPS will remain stationary and stable (see 4.0 - Installation Drawings).
The Liebert eXM and its auxiliary cabinets must be installed on a concrete or equivalent, nonresilient floor.
2.5
Mechanical Considerations
The Liebert eXM is constructed with a steel frame and removable panels. Top and side panels are
secured to the chassis by screws. The doors may be opened for access to power connections bars,
auxiliary terminals blocks and power switches.
The UPS comes with an Operator Control Panel that provides basic operational status and alarm
information. The cabinet houses the power components. Cooling is provided by internal fans. The unit
sits on four casters. Adjustable stops are provided to prevent the UPS from moving once it has been
moved to its final position.
The Wiring Cabinet (see Figure 1) provides the additional space to support wiring and conduit
landing for the 160-200kVA models of the Liebert eXM. The wiring cabinet is added to the UPS when
a Liebert eXM MBC is not used. The wiring cabinet provides space for the conduit and power
connections to a customer-supplied maintenance bypass cabinet.
! WARNING
Risk of heavy units tipping over while being moved. Can cause property damage, injury and
death.
Emerson recommends lifting the units by installing four eyebolts in the factory-fabricated
holes, one at each corner of the unit, attaching cables or similar strapping to the eyebolts and
lifting with a suitable mechanism.
! AVERTISSEMENT
Le centre de gravité élevé des appareils présente un risque de renversement lors des
déplacements, peut entraîner des dommages matériels, des blessures et même la mort.
Emerson recommande de soulever les appareils en installant quatre anneaux de levage dans
les ouvertures fabriquées en usine, avec un anneau dans chaque coin de l’appareil, pour
ensuite fixer les câbles ou sangles aux anneaux afin d’effectuer le levage à l’aide d’un
mécanisme approprié.
9
Liebert® eXM™
Installation
2.5.1
Dimensions
Figure 1
UPS dimensions
34.5" (875mm)
46.25" (1175mm)
Wiring
Cabinet
78.7"
(2000mm)
78.7"
(2000mm)
120 and 140kVA Models
Table 1
160, 180 and 200kVA Models
UPS weight
UPS Rating
kVA
Unit Weight
lb. (kg)
Shipping Weight
lb. (kg)
120
1221 (554)
1321 (600)
140
1295 (587)
1395 (633)
160
1368 (621)
1468 (666)
180
1442 (654)
1542 (699)
200
1516 (688)
1616 (733)
Liebert® eXM™
10
Installation
2.5.2
Clearances
REAR
0 to 5" (127mm)
Rear clearance
depends on
anchoring method
0" Required
Liebert
eXM
0" Required
FRONT
Minimum of 36" (914mm)
required for foot traffic
with door fully open
Provide at least the minimum clearance required by NEC on all sides of Liebert eXM, including 36"
(914mm) in front, to permit routine tightening power terminations within the UPS and free passage
of personnel with the door fully opened. Depending on the floor anchoring system used, up to
5" (127mm) may be required in the rear of the UPS.
There are no ventilation grilles on the sides or back of the UPS.
Leave a minimum of 24 in. (610mm) between the top of the UPS frame and the ceiling to permit
adequate air circulation above the unit. Emerson recommends against using air conditioning or other
systems that blow air onto the top of the unit.
2.5.3
Floor Installation
If the Liebert eXM is to be placed on a raised floor, the UPS should be mounted on a pedestal that will
support the equipment point loading. Refer to the bottom view in Figure 1 to design this pedestal.
11
Liebert® eXM™
Installation
2.5.4
Cable Entry
Cables can enter the Liebert eXM from the top or bottom through removable metal plates.
Some plates have factory-punched holes and others are designed to allow the personnel to punch
holes for fitting and securing the conduit. Once the conduit holes are punched, these plates should be
reattached to the UPS. The conduit size and wiring method must be in accordance with all local,
regional and national codes and regulations, including NEC ANSI/NFPA 70.
The UPS must be accessible from the front to allow personnel to complete the cable connections and
make necessary adjustments.
NOTE
When installing the UPS, the customer must provide a disconnect with overcurrent protection
at the output of the UPS.
Figure 2
Cable entry locations, 120-140kVA model
Bottom Control
Cable Entry
Top Power
Cable Entry
Bottom
Power
Cable
Entry
Top Control
Cable Entry
TOP OF UPS
Figure 3
BOTTOM OF UPS
Cable entry locations, 160-200kVA model
Top Power
Cable Entry
Bottom Control
Cable Entry
Top Power
Cable Entry
Bottom Power
Cable Entry
Bottom Power
Cable Entry
Top Control
Cable Entry
Liebert® eXM™
TOP OF UPS
WIRING
CABINET
WIRING
CABINET
12
Installation
2.6
Auxiliary Cabinets
The 120-200kVA frame consists of a single cabinet housing the UPS components. It does not
accommodate internal batteries. The UPS requires external battery cabinets for extended run time.
Battery Cabinets—Optional battery cabinets are available for each Liebert eXM model to provide
extended run time. The battery cabinets are designed to be bolted to the left side of the UPS (see
Figure 4). Refer to SL-25651, the Liebert eXM Battery Cabinet manual, for details. Battery cabinet
wiring is specified for optimal performance of the system.
Maintenance Bypass Cabinet—Optional Liebert bypass cabinets are available. These cabinets
house the components necessary to provide an external wraparound maintenance bypass switch for
servicing the UPS. Liebert bypass cabinets are designed to be bolted to the right side of the UPS (see
Figure 4). Refer to SL-25652, the Liebert eXM Maintenance Bypass Cabinet manual for further
details.
Parallel Cabinet—The Liebert eXM Maintenance Bypass Cabinet provides the components for
setting up two Liebert eXM units for parallel operation for redundant protection or to increase
capacity. Refer to SL-25654, the Liebert eXM Parallel Cabinet for further details.
System Composition
A UPS system can comprise a number of optional equipment cabinets, depending on the system
design requirements—e.g., UPS cabinet, External Battery Cabinet and External Bypass Cabinet. All
cabinets used will be the same height and will be designed to be positioned side-by-side to form an
aesthetically appealing equipment suite.
Figure 4
Cabinet arrangement
ALL UNITS VIEWED FROM ABOVE
Liebert
eXM
Maintenance
Bypass
Cabinet
Layouts shown are typical.
Not all auxiliary cabinets are
shown. Refer to the submittal
drawings for the exact
configuration of your system.
Battery
Cabinet
Liebert eXM connected to Battery Cabinet
(Battery Cabinets must be on the left side
of the Liebert eXM)
Liebert eXM connected only
to Liebert MBC
(The Liebert MBC must be on right side of
the Liebert eXM)
Liebert
eXM
Battery
Cabinet
Liebert
eXM
Battery
Cabinet
Maintenance
Bypass
Cabinet
Liebert eXM connected to Liebert MBC and Battery Cabinets
(MBC must be on right side of the Liebert eXM)
(Battery Cabinets must be on the left side of the Liebert eXM)
13
Liebert® eXM™
Installation
2.7
Liebert Power Module Assembly
Figure 5
Liebert power module assembly indicators and controls
Fault LED
DIP Switches
Battery Start Button
See Figures 14 through 17 for details.
Run LED
Ready Switch
The BATTERY START button allows starting the UPS on battery; refer to 7.3 - UPS Battery Start.
The Run LED is illuminated Green when the Liebert power module assembly is operating normally.
The Fault LED will illuminate red when the Liebert power module assembly has a problem.
Table 2
LED indications
LED Status
Indication
Run LED (Green)
Flashing Green
The inverter is starting, but has no output yet.
Constant Green The inverter has started to supply power.
OFF
The inverter has not started up.
Fault LED (Red)
Auxiliary power failure (15V or 24V), rectifier overtemperature, rectifier failure (including battery
SCR short circuit), battery converter failure, soft start failure, main circuit back feed, abnormal
input current, inverter failure, output short circuit, bypass SCR short circuit fault, inverter relay
Constant Red
short circuit fault, abnormal bus voltage, module not ready, module ID out of range and
duplicated module ID.
Charger failure, abnormal main circuit voltage, abnormal main circuit frequency, main circuit
undervoltage, main circuit reverse phase, battery unavailable, reverse battery, input zero-loss,
Flashing Red
current sharing failure, module overload, inverter relay disconnection fault, bypass SCR
disconnection fault and input fuse blown.
OFF
Liebert® eXM™
No above failures or alarms.
14
Installation
2.8
Control Module
Figure 6
Control Module, front view
DB9
DB9
See Figures 15- 18 for details.
DB15
Liebert IntelliSlot
Bays 1, 2, 3
Ready Switch
The Control Module has three Liebert IntelliSlot™ interface card bays and connections for optional
ancillary cabinets and for other options. Refer to Figures 14 through 17.
2.9
Static Bypass Assembly
Figure 7
Static Bypass Assembly connections
15
Liebert® eXM™
Electrical Connections—UPS
3.0
ELECTRICAL CONNECTIONS—UPS
The UPS requires both power and control cabling once it has been mechanically installed. All control
cables must run separate from power cables in metal conduits or metal ducts that are electrically
bonded to the metalwork of the cabinets to which they are connected.
! WARNING
Risk of electric shock. Can cause property damage, injury and death.
Before connecting input power to the Liebert eXM, ensure that you are aware of the location
and operation of the overcurrent protection devices that connect the UPS input/bypass supply
to the power distribution panel.
De-energize and lockout or tagout all incoming high- and low-voltage power circuits before
installing cables or making any electrical connections.
! AVERTISSEMENT
Risque de décharge électrique pouvant entraîner des dommages matériels, des blessures et
même la mort.
Avant de procéder au branchement de l’alimentation d’entrée du système eXM de Liebert,
veillez à prendre connaissance de l’emplacement et du fonctionnement des dispositifs de
protection de surintensité qui raccordent l’alimentation d’entrée ou de dérivation du système
ASC au panneau de distribution électrique.
Coupez l’alimentation et appliquez le verrouillage ou l’étiquetage à tous les circuits
d’alimentation haute tension et basse tension avant d’installer les câbles ou d’effectuer tout
autre branchement électrique.
3.1
Power Cabling
3.1.1
Lug Size and Cable Rating
The main factors affecting the choice and size of cable are voltage, current (also taking into account
overcurrent), room temperature and conditions of installation of the cable. Refer to ANSI/NFPA 70.
The power cables of the system must be sized with respect to the following description:
• UPS input cables - The UPS input cables must be sized for the maximum input current,
including the maximum battery recharge current, given in Table 25, with respect to the unit
rating and the input AC voltage.
• UPS bypass and output cables - The bypass and output cables must be sized for the nominal
output current, given in Table 25, with respect to the unit rating and the output AC voltage.
• Battery cables - See the Liebert eXM External Battery Cabinet manual, SL-25651, for battery
installation guidelines and instructions. The manual ships with the battery cabinet and is
available at Liebert’s Web site: www.liebert.com
NOTE
Table 25 gives nominal currents for determining the size of UPS power cables. Other
important factors to consider include cable route length and coordination with protective
devices.
The power cables can be sized to suit the UPS unit rating according to Table 25.
Liebert® eXM™
16
Electrical Connections—UPS
Torque Requirements
Refer to Tables 3 and 4 for lug size and torque requirements.
Table 3
Busbars (for power wiring)
Bolt Shaft Size
Lb-in (Nm)
1/2" (M12)
428 (48)
Table 4
Terminal block with compression lugs (for control wiring)
AWG Wire Size
or Range
#22 - #14
3.2
Lb-in (Nm)
3.5 to 5.3
(0.4 to 0.6)
External Protective Devices
For safety concerns, it is necessary to install external circuit breakers or other protective devices for
the input AC supply of the UPS system. This section provides generic practical information for
qualified installation engineers. The installation engineers should be knowledgeable about regulatory
wiring standards and the equipment to be installed.
To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent protection
in accordance with NEC ANSI/NFPA 70.
3.2.1
Rectifier and Bypass Input Supply of the UPS
Overcurrents
Install suitable protective devices in the distribution unit of the incoming mains supply, considering
the power cable current-carrying capacity and overload capacity of the system. Generally, the
magnetic circuit breaker with IEC60947-2 tripping curve C (normal) at the 125% of the nominal
current listed in Table 25 is recommended.
Split bypass: In case a split bypass is used, separate protective devices should be installed for the
rectifier input and bypass input in the incoming mains distribution panel. A shunt trip coil of 120V
must be installed in the bypass input breaker if the system does not include a Liebert Bypass
Cabinet. Refer to Figure 8 for more details.
NOTE
The rectifier input and bypass input must use the same neutral line.
Earth Leakage, RCD Devices
Any residual current detector (RCD) installed upstream of the UPS input supply:
• Must be sensitive to DC unidirectional pulses (Class A)
• Must be insensitive to transient current pulses, and
• Must have an average sensitivity, adjustable between 0.3 and 1A.
To avoid false alarms, earth leakage monitoring devices when used in systems with split bypass input
or when used in paralleled UPS configurations, must be located upstream of the common neutral
sinking point. Alternatively, the device must monitor the combined four-wire rectifier and split
bypass input currents.
3.2.2
UPS Output
If an external distribution panel is used for load distribution, the selection of protective devices must
provide discrimination with those that are used at the input to the UPS (see Table 30).
17
Liebert® eXM™
Electrical Connections—UPS
3.2.3
UPS Input Configuration
By default, the Liebert eXM ships with internal links installed between the bypass input and main
(rectifier) input (single input configuration).
Figures 8 and 9 show the Liebert eXM in a split bypass (single source dual-input) configuration. In
this configuration, the static bypass and the maintenance bypass lines are supplied by the same
source using separate feeds. Both feeds must be protected externally with properly sized protective
devices.
To wire the Liebert eXM as a single source dual-input UPS, remove the links and wire the bypass feed
to the bypass busbars, then wire the main feed to the main busbars (see Figure 10).
Figure 8
Single UPS block diagram—Dual input, single source configuration, without bypass cabinet
* Bypass
AC Input
4-Wire + GND
See Note 6
Static Bypass
* Rectifier
AC Input
4-Wire + GND
Output
Busbar
AC Output
208V
4-Wire + GND
UPS Cabinet
Battery
NOTES
1. Install in accordance with national and local electrical codes. * External overcurrent protection
by others
2. Input and bypass must share the same single source.
Field-Supplied Wiring
3. A neutral is required from the system AC input source. A full
capacity neutral conductor is recommended. Grounding
conductors are recommended.
4. Bypass and rectifier inputs and output cables must be run
in separate conduits.
5. Control wiring must be run in separate conduits.
6. Customer must supply shunt trip breakers with 120V coils
to the bypass.
Liebert® eXM™
18
Electrical Connections—UPS
Figure 9
Single UPS block diagram—Dual input, single source configuration with MBC
Maintenance Bypass Cabinet
Output
Bus
MBB
* Bypass
AC Input
4-Wire + GND BIB
MIB
AC Output
208V
4-Wire + GND
Static Bypass
* Rectifier
AC Input
4-Wire + GND
UPS Cabinet
Battery
NOTES
BIB - Bypass Isolation Breaker
1. Install in accordance with national and local electrical codes.
MBB - Maintenance Bypass Breaker
2. Input and bypass must share the same single source.
MIB - Maintenance Isolation Breaker
3. A neutral is required from the system AC input source. A full
* External Overcurrent Protection
capacity neutral conductor is recommended. Grounding
by others
conductors are recommended.
Field-Supplied Wiring
4. Bypass and rectifier inputs and output cables must be run
in separate conduits.
5. Control wiring must be run in separate conduits.
6. Customer must supply shunt trip breaker with 120V coil. If an optional
Liebert MBC is not present, the shunt trip must be installed to Bypass Breaker.
19
Liebert® eXM™
Electrical Connections—UPS
3.2.4
Cabling Guidelines
The following are guidelines only and are superseded by local regulations and codes of practice where
applicable. Use wiring rated at 75°C or greater.
1. Take special care when determining the size of the neutral cable, as current circulating on the
neutral cable may be greater than nominal current in the case of non-linear loads. Refer to the
values in 8.3 - UPS Electrical Characteristics.
2. The ground conductor should be sized according to such factors as the fault rating, cable lengths
and type of protection. The ground cable connecting the UPS to the main ground system must
follow the most direct route possible. Control wiring and power wiring must be run in separate
conduit. Output and input cables must be run in separate conduit.
3. Consider using paralleled smaller cables for heavy currents—This can ease installation.
4. Refer to SL-25651, the battery cabinet user manual, which shipped with the battery cabinet and
is available at Liebert’s Web site (www.liebert.com), for guidelines and instructions when sizing
battery cables.
5. In most installations, the load equipment is connected to a distribution network of individually
protected busbars fed by the UPS output, rather than connected directly to the UPS itself. When
this is the case, the UPS output cables can be rated to suit the individual distribution network
demands rather than being fully load-rated.
NOTE
If more load is added to the distribution panel, the unit’s cabling must be resized.
6. When laying power cables, do not form coils; this will help avoid increasing formation of
electromagnetic interference.
3.2.5
Cable Connections
The rectifier input, bypass, output and battery are easily accessible from the front of the unit for
installation. All require lug type terminations. They are connected to busbars on the front of the
Liebert eXM, as shown in Figure 10. These busbars are accessible when the I/O panel is removed.
NOTICE
Risk of improper installation. Can cause equipment damage.
When wiring a single-input only system, connect only the power wiring to the input busbars.
Liebert® eXM™
20
Electrical Connections—UPS
Figure 10 Input busbars—Liebert eXM 120-200kVA frame
42.4" (1077mm)
37.5" (953mm)
Bypass Input C
Input N
Bypass Input A
Rectifier Input C
Bypass Input B
Battery N
Rectifier Input A
Rectifier Input B
Ground
Busbar
78.4"
(1991mm)
Battery +
Battery Output N
Output Phase A
Output Phase B
Output Phase C
RIGHT VIEW
Panel Removed
21
Liebert® eXM™
Electrical Connections—UPS
3.2.6
Accessory Fuses and Back-Feed Breaker Wiring
Two fuse blocks provide power for the back-feed breakers (standard) and the BDSUi (optional). The
fuse blocks are at the lower right of the I/O panel on the front of the Liebert eXM UPS. See Figure 11
for fuse-holder locations.
The back-feed breaker fuse block provides 120V nominal provided from the UPS output (L-N) and the
fuse is rated for 8 amps. Figure 12 shows the back-feed breaker wiring, located on the bypass static
switch assembly.
The Liebert eXM does not include internal back-feed protection. A shunt trip coil of 120V must be
installed in the bypass input breaker if the system does not include a Liebert Bypass Cabinet. This is
a safety feature and will prevent the UPS inverter from back-feeding the bypass source.
The BDSUi fuse block provides 208V nominal from the UPS output (L-L) and the fuse is rated at 8A.
The BDSUi power wiring is shown in SL-25651, the Liebert eXM Battery Cabinet manual.
Figure 11 Accessory fuses
BDSUi FH2
(optional)
Back-Feed
Breaker FH1
Liebert® eXM™
22
Electrical Connections—UPS
Figure 12 Dual input back-feed breaker wiring when maintenance bypass cabinet not used
1. Auxiliary contacts not needed for backfeed breaker operation.
2. A 120V shunt trip coil is required for proper operation.
Upstream System
Input Breaker
AUX
C2
Upstream Bypass
Input Breaker
Dual Input Control Wiring
Single Input Control Wiring
MX
C1
AUX
Backfeed Breaker
Fuse Block (FH1)
J23
C2
MX
C1
1 3
J23
1
Backfeed Breaker
Fuse Block (FH1)
3
N
PH B
PH B
N
J24
1 3
J23
1
BFP_O
3
BFP_S
5
BFP_C
1
MFP_O
3
MFP_S
5
6
INV_C
4
INV_S
2
INV_O
MFP_C
Upstream Rectifier
Input Breaker, Optional
J24
6
MAIN_C
4
MAIN_S
2
MAIN_O
AUX
C2
MX
C1
J24
1 3
J25
RESV_O
3
RESV_S
5
6
1
4
RESV_S
RESV_C
2
RESV_O
RESV_C
UAM04030
Rev. 3
NOTE
Shunt trips are required in upstream breakers to allow back-feed protection to function
properly.
Shunt trip of the upstream rectifier input breaker is optional.
23
Liebert® eXM™
Electrical Connections—UPS
3.2.7
Safety Ground
The safety ground busbar is below the neutral input and output busbars as shown in Figure 13
below. The safety ground cable must be connected to the ground busbar and bonded to each cabinet in
the system. This ground busbar is then connected to the ground electrode conductor (GEC).
All cabinets and cable conduit should be grounded in accordance with local regulations.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Failure to follow proper grounding procedures can result in electric shock hazard to personnel
or the risk of fire, should a ground fault occur.
! AVERTISSEMENT
Le non-respect des procédures de mise à la terre peut entraîner des risques d’électrocution du
personnel, ou des risques d’incendie en cas de défectuosité de la mise à la terre.
Toutes les opérations décrites dans cette section ne doivent être effectuées que par des
électriciens ou des techniciens professionnels dûment formés et qualifiés. En cas de
difficultés, communiquez avec Emerson Network Power. Pour obtenir les renseignements de
contact, consultez la dernière page de ce manuel.
NOTE
Proper grounding significantly reduces problems caused by electromagnetic interference.
NOTE
The ground and neutral busbars are easily accessible when the I/O panel is removed. Cable
connections should be made before a cabinet is attached to the right side of the Liebert eXM or
before the UPS is placed where another obstruction, such as a wall, is against the Liebert
eXM’s the right side.
Liebert® eXM™
24
Electrical Connections—UPS
Figure 13 Ground and neutral busbar connections—120-200kVA frame busbars
37.5" (953mm)
Input
Neutral
Battery
Neutral
Ground
Busbar
Output
Neutral
RIGHT SIDE
Panel Removed
25
Liebert® eXM™
Electrical Connections—UPS
3.2.8
Protective Devices
For safety, it is necessary to install circuit breakers in the input AC supply external to the UPS
system. Given that every installation has its own characteristics, this section provides guidelines for
qualified installation engineers with knowledge of operating practices, regulatory standards and the
equipment to be installed.
UPS Rectifier and Bypass Input Supply
Protection from excessive overcurrents and short circuits in power supply input
External overcurrent protection for the AC output circuit is to be provided. See 8.3 - UPS
Electrical Characteristics and Table 32 for overload capacity.
Overcurrent protection for the battery circuit must be provided by the customer when using an
external battery cabinet not manufactured by Emerson®.
• Dual Input Single Source
When wiring the UPS with dual inputs but with a single input source, the Rectifier input and the
Bypass input must be protected separately. Size the breakers according to the input currents
shown in Table 25.
NOTE
For single or dual input, a 120V shunt trip coil(s) is required when a breaker is supplied by the
customer. See Figures 9 for details.
Fuses
The Liebert eXM’s main input and bypass input busbars are equipped with fuses (six locations;
see Figure 23). The type is Bussmann 170M6466, rated 1250A.
System Output
When using an external distribution panel for load distribution, the output neutral and input neutral
must be separated at the input to the UPS.
3.2.9
Cabling Procedure
! CAUTION
The operations described in this section must be performed by authorized electricians or
qualified technical personnel. If you have any difficulties, contact your local Emerson
representative or Liebert Services.
! AVERTISSEMENT
Toutes les opérations décrites dans cette section ne doivent être effectuées que par des
électriciens ou des techniciens professionnels dûment formés et qualifiés. En cas de
difficultés, communiquez avec Emerson Network Power. Pour obtenir les renseignements de
contact, consultez la dernière page de ce manuel.
NOTE
Hydraulic pressure pliers, combinative tools and piston ring pliers should be used to connect
AC wiring.
Once the equipment has been positioned and secured for operation, and the battery and ground lugs
have been connected (see 3.2.5 - Cable Connections), connect the power cables as described below.
(Study the reference drawing in 4.0 - Installation Drawings.)
1. Verify that all incoming high and low voltage power circuits are de-energized and locked out or
tagged out before installing cables or making any electrical connections.
2. Remove the front I/O panel to gain easier access to the connections busbars.
3. Connect the facility ground and ancillary ground bus cables to the copper ground busbar located
in the middle of the Liebert eXM behind the output connections. All cabinets in the UPS system
must be connected to the user’s ground connection.
NOTE
The grounding and neutral bonding arrangement must comply with the National Electrical
Code and all applicable local codes.
4. Identify and make power connections with incoming cables according to Steps 5 through 8.
Liebert® eXM™
26
Electrical Connections—UPS
Common Input Connections
5. For common bypass and main inputs, connect the AC input supply cables to the UPS input
terminals (A2-B2-C2-N1) and tighten the connections to 428 lb-in. (48Nm) (M12 bolt). Ensure
correct phase rotation.
NOTE
For common bypass and main inputs, the AC input cables must be connected to the bypass
terminal (A2-B2-C2-N1) but not the main input terminal (A2-B2-C2).
Split Bypass Connections
6. If a split bypass configuration is used, connect the AC input supply cables to the rectifier input
terminals (A1-B1-C1-N1) and the AC bypass supply cables to the bypass input terminals
(A2-B2-C2-N1) and tighten the connections to 428 lb-in. (48Nm) (M12 bolt). Ensure correct phase
rotation.
NOTE
For split bypass operation, ensure that the busbars between bypass and rectifier inputs are
removed. The neutral line of the bypass input must be connected to that of the rectifier input.
Output System Connections—Ensure Correct Phase Rotation
7. Connect the system output cables between the UPS output busbars (A-B-C-N terminals) and the
critical load and tighten the connections to 428 lb-in. (48Nm) (M12 bolt).
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
If the load equipment will not be ready to accept power when the commissioning engineer
arrives, ensure that the system output cables are safely isolated.
! AVERTISSEMENT
Risque de décharge électrique pouvant causer des blessures graves, voire mortelles.
Si les équipements branchés ne sont pas prêts à être alimentés à l’arrivée de l’ingénieur de
mise en service, assurez-vous que les bornes des câbles de sortie du système soient isolées de
façon sécuritaire.
Observe the battery cable polarity. Be sure that the battery connections, if any, are made
with the correct polarity.
8. Refit all protective covers removed for cable installation.
27
Liebert® eXM™
Electrical Connections—UPS
3.3
Control Cables Details
3.3.1
Static Bypass Assembly Features
Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker, battery temperature sensor), communicate with a personal
computer or provide alarm signaling to external devices or for Remote Emergency Power Off (REPO).
Terminations for these functions are located at the front of the static bypass assembly. The main
features are:
• Input and output dry contacts signal (one pair of contacts of relay)
• Emergency Power Off control (EPO)
• Environmental parameter input interface
• User communication (for data setting and user background monitor)
• Liebert IntelliSlot™ interface
• Temperature detect interface
Figure 14 Control Module connections to display cabinet and options
Figure 15 Auxiliary terminal block detail (control module front panel)
5
1
3
5
RESV_O
3
RESV_S
1
J25
RESV_C
32
MFP_O
30
MFP_S
28
MFP_C
26
BFP_C
22 24
BFP_S
20
BFP_O
18
NC
16
UT2 485+
14
NC
12
UT2 485-
CHG SHUT
GND_DRY
10
GND_DRY
GND_DRY
8
RESV1
+12V_DRY
6
ENV_DET
4
J23
1
3
5
J25
J24
28
15
17
19
21 23
25
27 29
31
2
4
6
2
4
6
2
4
6
RESV_S
13
RESV_C
11
RESV_O
9
MAIN_S
7
MAIN_C
5
MAIN_O
3
INV_C
1
INV_S
20
INV_O
18
GND_MON
14 16
UT1 485-
12
UT1 485+
10
NC
8
GND_DRY
6
RESV3
4
Q5 STATUS
2
RESV2
18 20
GND_DRY
16
GND_DRY
14
GND_DRY
10 12
Q3 STATUS
8
J26
Q1 STATUS
6
P SER BUS H
4
P MON CAN H1
P CAN H
2
J30
Liebert® eXM™
2
J24
J21
J22
LCD
TMP BATT_IN
17 19
GND_DRY
13 15
GND_DRY
11
J23
LITH_BATT_DET
9
GEN MODE
7
BATT_GND_FAULT
5
GND_DRY
3
12V_A
1
NC
17 19
GND_DRY
15
GND_DRY
PARALLEL PORT
11 13
GND_DRY
LBS PORT
9
Q2 STATUS
1
7
P SER BUS H1
2
J30
5
P CAN H1
3
3
J26
TMP_BATT
1
BCB STATUS
J20
J2
4
J22
12V_DRV
J19
J21
GND_DRY
RS232
J20
BCB_ON
J1
J19
P MON CAN H
EPO-NO
EPO-NC
+12V
J1
+12V
J2
Electrical Connections—UPS
3.4
Dry Contacts
The UPS provides input dry contacts and output dry contacts on the Auxiliary Terminal Block (ATB).
3.4.1
Input Dry Contacts
External input dry contacts are connected via the ATB. Dry contacts are available for environment
detection, battery ground fault detection, etc.
The UPS accepts external signal from zero-voltage (dry) contacts connected through external dry
contact terminals produced, and these terminals are on the static bypass assembly. Through software
programming, these signals become active when these contacts connect to +12V to ground (in the
most left side). The cables connected to the monitor board must be separated from power cables.
Moreover, these cables should be double-insulated with a typical cross-section of 0.5 to 1mm2 for a
maximum connection length between 82 and 165ft. (25-50m). The ATB has several input dry contacts.
Figure 16 Input dry contacts
J26
2
4
6
TMP BATT_IN
8
+12V_DRY
10
Reserved
12
Reserved
14
ENV_DET
16
GND_DRY
18
CHG SHUT
20
GND_DRY
22 24
RESV1
GND_DRY
26
NC
28
UT2 485+
30
UT2 485-
32
NC
7
Q3 STATUS
9
GND_DRY
11
GND_DRY
GND_DRY
5
Q2 STATUS
3
GND_DRY
GEN MODE
1
Q1 STATUS
13
GND_DRY
15
GND_DRY
17
RESV2
19
RESV3
GND_DRY
21 23
NC
Q5 STATUS
25
UT1 485-
27 29
GND_MON
31
UT1 485+
29
Liebert® eXM™
Electrical Connections—UPS
Table 5
Input dry contacts—J26
Port
Pin
J26
Liebert® eXM™
Name
Description
1
Q1 STATUS
The main input switch status signal
3
GND_DRY
Dry ground
5
Q2 STATUS
The bypass input switch status signal
7
GND_DRY
Dry ground
9
Q3 STATUS
External maintenance switch status signal
11
GND_DRY
Dry ground
13
Q5 STATUS
External output switch status signal
15
GND_DRY
Dry ground
17
GND_DRY
Dry ground
19
RESV2
Reserved
21
RESV3
Reserved
23
GND_DRY
Dry ground
25
NC
NC
27
UT1 485+
485+
29
UT1 485-
485-
31
GND_MON
Monitor ground
2
GEN MODE
Generator mode input. Generator mode when not connected
4
GND_DRY
Dry ground
6
TMP BATT_IN
Internal Battery Temperature Detect
8
+12V_DRY
POWER
10
Reserved
Reserved
12
GND_DRY
Dry ground
14
ENV_DET
Battery room temperature detect
16
GND_DRY
Common ground
18
CHG SHUT
Charger off contact
20
GND_DRY
Dry ground
22
RESV1
Reserved
24
GND_DRY
Dry ground
26
NC
NC
28
UT2 485+
485+
30
UT2 485-
485-
30
Electrical Connections—UPS
3.4.2
Output Dry Contacts
The Auxiliary Terminal Block has three output dry contact relays (see Figure 17 and Table 6).
Figure 17 Output dry contacts and EPO wiring
J23
1
BFP_O
3
BFP_S
5
BFP_C
1
MFP_O
3
MFP_S
5
MFP_C
1
RESV_O
3
RESV_S
5
6
INV_C
4
INV_S
2
INV_O
RESV_C
J24
6
MAIN_C
4
MAIN_S
2
MAIN_O
J25
Table 6
Port
J24
J23
J23
J24
6
RESV_C
4
RESV_S
2
RESV_O
Output dry contact relays
Pin
Name
Description
1
MFP_O
Rectifier back-feed normally open contact. Open when there is no back-feed.
3
MFP_S
Rectifier back-feed common contact.
5
MFP_C
Rectifier back-feed normally closed contact. Closed when there is no back-feed.
2
INV_O
Inverter state normally open contact. Open when the inverter is abnormal.
4
INV_S
Inverter state common contact.
6
INV_C
Inverter state normally open contact. Closed when the inverter is normal.
1
BFP_O
Bypass back-feed normally open contact. Open when there is no back-feed.
3
BFP_S
Bypass back-feed common contact.
5
BFP_C
Bypass back-feed normally closed contact. Closed when there is no back-feed.
2
MAIN_O
Rectifier input state normally open contact. Open when the rectifier is abnormal.
4
MAIN_S
Rectifier input state common contact.
6
MAIN_C
Rectifier input state normally closed contact. Closed when the rectifier is normal.
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.
31
Liebert® eXM™
Electrical Connections—UPS
3.4.3
Liebert MBC Interface
The Liebert MBC interface is on the Auxiliary Terminal Block at J26. Refer to Figure 16 for circuit
details.
Table 7
Liebert BDC interface
Position
Name
J26.1
Q1 STA
Main input switch status signal
J26.5
Q2 STA
Bypass input switch status signal
J26.9
Q3 STA
External maintenance switch status signal
J26, 3, 7, 9
GND
Description
Ground for dry contacts
These contacts cannot be active unless they are set via software.
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.
NOTE
Refer to SL-25652, the Liebert eXM Maintenance Bypass Cabinet manual for the Liebert MBC
wiring.
3.4.4
Battery Cabinet Interface Connectors
The battery cabinet interface is on the Auxiliary Terminal Block at J22. Refer to Figure 18 for circuit
details.
BCB_ON
NC
GND_DRY
5
7
9
11 13 15 17 19
12V_A
GND_DRY
3
GND_DRY
BCB STATUS
1
TMP_BATT
12V_DRV
BATT_GND_FAULT
Figure 18 Battery cabinet interface—J22
J22
2
Table 8
Pin
4
6
8
10 12 14 16 18 20
Battery cabinet interface—J22
Name
Description
1
12V_DRV
BCB driver signal
3
BCB STATUS
BCB state signal
5
GND_DRY
Dry ground
7
BCB_ON
BCB on line signal
9
NC
NC
11
GND_DRY
Dry ground
13
TMP_BATT
External Battery temperature
15
12V_A
Power
17
GND_DRY
Dry ground
19
BATT_GND_FAULT
Battery ground fault signal
Liebert® eXM™
32
Electrical Connections—UPS
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.
3.4.5
EPO Input—Optional
NOTICE
Risk of exceeding internal voltage limits. Can cause equipment damage.
Do not apply more than 12V to the Emergency Power Off (EPO) input. Exceeding 12V on this
input can damage the Liebert eXM’s internal circuitry and control boards. Exceeding 12V will
also put the Liebert eXM in an EPO state, and the unit will not reset, making it nonfunctional.
The UPS has an Emergency Power Off (EPO) function operated by a button on the control panel or by
a remote contact provided by the user. The EPO button is under a hinged, clear plastic shield.
The J2 connector, shown in Figure 19, is the remote EPO input interface. The EPO has NO/NC
contacts that become active when shorting terminals J2: 3 and 4 or open terminal connection J2:2
and 1.
If an external Emergency Stop capability is required, it is connected at terminals J2: 1 and 2 and at
J2: 3 and 4 on the monitor board. It also is connected to the Normally Open or Normally Closed
remote stop switch between these two terminals using shielded cable (see Figure 19 and Table 9). If
this function is not used, terminals J2:3 and 4 must be opened and J2:1 and 2 must be closed.
Figure 19 EPO wiring and signal names for J2
J2
3
12V
2
12V
1
Pin
4
Table 9
EPO-NO
EPO-NC
EPO input contact relays—J2
Name
Description
1
EPO-NC
EPO activated when opened to Pin 2
2
+ 12V
EPO activated when opened to Pin 1
3
+ 12V
EPO activated when shorted to Pin 4
4
EPO-NO
EPO activated when shorted to Pin 3
NOTE
The Emergency Stop action within the UPS shuts down the rectifier, inverter and static
bypass. It does not internally disconnect the input power supply. To disconnect ALL power to
the UPS, open the upstream feeder breaker(s) after the remote EPO is activated.
NOTE
Normally Closed EPO – J2: 12, these terminals are supplied factory-linked on the Bypass
Module on the UPS and must remain installed if using NO contacts.
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 80 and 200 feet (25-60m), respectively.
33
Liebert® eXM™
Electrical Connections—UPS
Figure 20 Single UPS Remote Emergency Power Off
Single Liebert eXM Module
Liebert eXM
Bypass Module
4
EPO_NO
3
2
+12V
1
Remote Emergency
Power Off
(Customer-Supplied)
+12V
EPO_NC
X9_J2
Field-Supplied Wiring
3.5
Parallel Cable Connections
Figure 21 Parallel cable wiring diagram
J20
J20
Parallel Port
Parallel Port
Parallel Cable Configuration for 1+1/2+0
J20
J20
J20
Parallel Port
Parallel Port
J2
Parallel Port
J2
Parallel Cable Configuration for 2+1
Liebert® eXM™
34
J2
EXM14015
Rev. 0
Installation Drawings
4.0
INSTALLATION DRAWINGS
The diagrams in this section illustrate the key mechanical and electrical characteristics of the Liebert
eXM UPS System cabinets (UPS, Liebert MBC and battery).
Figure 22 UPS dimensions—front view
120-140kVA UPS
160-200kVA UPS
46.25" (1175mm)
34.5" (875mm)
Wiring
Cabinet
78.7"
(2000mm)
78.7"
(2000mm)
NOTES
1. Dimensions are in inches (mm)
2. 24" (610mm) minimum clearance above unit required for air exhaust. No clearance required in
rear except when using seismic anchoring, allow 5" (127mm) clearance. 36" (914mm) front access
required for service.
3. Keep cabinet within 15 degrees of vertical.
4. Top and bottom cable entry available through removable access plates. Remove, punch to suit
conduit size and replace.
5. Unit bottom is structurally adequate for forklift handling.
6. Control wiring and power wiring must be run in separate condutis.
7. All wiring is to be in accordance with national and local electrical codes.
8. All battery cabinets must be positioned on the left side of the UPS.
35
Liebert® eXM™
Installation Drawings
Figure 23 UPS main components—typical 120-200kVA unit
Control Module
Static Bypass
Assembly
Bypass Input Fuses
Replaceable
Air Filter
Control
Panel
Power
Module
Main
Input
Fuses
Replaceable
Air Filter
Power
Module
FRONT
Door Open
Liebert® eXM™
RIGHT SIDE
36
Installation Drawings
Figure 24 UPS cable connections—120-200kVA frames
Battery Positive
Bypass Input A
Battery Negative
Bypass
Input C
Input
Neutral
Bypass Input B
Output
Neutral
Output
Phase A
Output
Phase B
Rectifier
Input C
Output
Phase C
Rectifier
Input A
Battery
Neutral
Rectifier
Input B
DETAIL B
DETAIL A
Ground
Busbar
See Detail A
See Detail B
RIGHT SIDE
FRONT
Door Open
37
Liebert® eXM™
Option Installation
5.0
OPTION INSTALLATION
5.1
Liebert IntelliSlot™ Communication
The Liebert eXM has three Liebert IntelliSlot ports to allow field-installation of optional
communication cards. Liebert IntelliSlot cards communicate via Liebert’s proprietary Velocity
protocol to cards that translate the information into such protocols as SNMP and Modbus. Other
cards provide dry contact signals for external signaling of operating status.
The Liebert IntelliSlot communication ports may be installed or removed while the Liebert eXM is
operating.
5.2
Liebert IntelliSlot Web Card—SNMP/HTTP Network Interface Card
This network interface card provides all real-time data and status information as SNMPv1 traps for
connection to a 10/100-baseT Ethernet connection. The same card also will transmit the same status
information and all measured parameters for display via a Web browser. The Liebert IntelliSlot bays
are on the right side of the control module and labeled as IntelliSlot1, IntelliSlot2 and IntelliSlot3.
Table 10
Liebert eXM communication options
Port Type and
Location
Labeled ID
Name of Port
Monitoring
Devices Supported
IS-Relay
Left Liebert
IntelliSlot
IntelliSlot 1
IS-Unity-DP
IS-Unity-LIFE
IS-485EXI
IS-Relay
Center Liebert
IntelliSlot
IntelliSlot 2
IS-Unity-DP
IS-Unity-LIFE
IS-485EXI
IS-Relay
Right Liebert
IntelliSlot
IntelliSlot 3
IS-Unity-DP
IS-Unity-LIFE
IS-485EXI
5.2.1
Liebert IntelliSlot™ Unity Cards—IS-UNITY-LIFE, IS-UNITY-S, IS-UNITY-DP
• IS-UNITY-LIFE: This standard card is used for communication between the Liebert eXM and
Emerson’s Trellis® NMS and LIFE™ services.
• IS-UNITY-DP: This card can be used instead of the standard card if communication to two
third-party platforms is required. Third-party platforms include SNMP and 485 (Modbus/Bacnet)
protocols. This card would still be used for communication between the Liebert eXM and
Emerson’s Trellis NMS and LIFE Services. All communication protocols are active
simultaneously.
• Liebert IntelliSlot Dry Contact Card (IS-RELAY): Provides dry contact alarm information,
including: On Battery, On Bypass, Low Battery, Summary Alarm, UPS Fault and On UPS signals
for communication to a remote monitoring system or for use with Liebert MultiLink® software.
• IS-485EXI: The Liebert IntelliSlot 485 EXI Card provides connection to a Liebert SiteLink-E™
allowing Liebert SiteScan® Web 4.0 monitoring and control of your Liebert equipment.
Liebert® eXM™
38
Option Installation
5.3
Liebert IntelliSlot Web Card—Optional
An optional Web card is available that provides remote access to the UPS. A wide variety of status
and summary information is available through an Ethernet connection.
Figure 25 Liebert IntelliSlot Web card display
39
Liebert® eXM™
Option Installation
5.4
Liebert IntelliSlot™ Relay Card
The Liebert IntelliSlot Relay card (IS-RELAY) provides voltage-free contact closures for remote
monitoring of alarm conditions.
Delivering On Battery, On Bypass, Low Battery, Summary Alarm, UPS Fault and On UPS
signals, the easy-to-install card integrates with AS/400 computers (additional cable required) and
other relay contact monitoring systems.
The relay card is rated for 24 VAC/DC at 1A. and supported in any of the three Liebert IntelliSlot
bays on the Liebert eXM.
5.4.1
Liebert IntelliSlot Relay Card Pin Configuration
The card has two terminals blocks, TB1 (green, numbered 1-9) and TB2 (black, 10-18), as shown in
Figure 26.
Figure 26 Pin location and numbering
9
18
TB2
black
TB1
green
1
10
Refer to your Liebert product user manual for the pin configuration for the terminal blocks.
Table 11
Relay card pin configuration
Pin
Function
Operation
1
Common - Low Battery
2
Low Battery
Closed if Low Battery point occurs.
—
3
Low Battery
Closed if battery is OK
4
Common - UPS Fault
5
UPS Fault
Closed if UPS fault occurs
6
UPS Fault
Closed if no UPS failure
7
Common - On Battery
8
On Battery
Closed if On Battery power (Utility failure)
9
On Battery
Closed if not On Battery power (Utility OK)
—
—
10 Not Used
—
11 Not Used
—
12 Not Used
—
13 Summary Alarm*
Closed if no alarm conditions are present
14 Summary Alarm*
Closed if Summary Alarm occurs
15 Common - Summary Alarm*
—
16 On UPS
Closed if On UPS (inverter) power
17 On Bypass
Closed if On Bypass
18 Common - On Bypass
Liebert® eXM™
—
40
Option Installation
5.4.2
Liebert IntelliSlot™ Relay Card Jumper Setup
The Liebert IntelliSlot Relay Card has five jumpers, P3 through P7, as shown in Figure 27. Each
jumper connects two pins.
Figure 27 Jumper location and numbering
Front
of
Card
Jumper
P6
Jumper
P5
Jumper
P4
Jumper
P3
Jumper
P7
By default all five jumpers have shunts installed. The two pins are shunted together to provide the
functions shown in Table 12, allowing relay commons to be tied together.
The jumpers should be removed if there is any external voltage source that may intentionally or
inadvertently be connected to the relay.
Removing the shunt from any two pins breaks the connection between the relay commons so they are
not tied together.
Table 12 Jumper connections
Jumper
P6
Relay
On Battery
P5
UPS Fault
P4
Low Battery
P3
On Bypass
P7
Summary Alarm
NOTE
Refer to the Liebert IntelliSlot Relay Card manual, SL-23211 for additional details. the
document is available at the Liebert Web site, www.liebert.com
41
Liebert® eXM™
Operator Control and Display Panel
6.0
OPERATOR CONTROL AND DISPLAY PANEL
6.1
Operator Control Panel
The control panel and LCD on the front of the Liebert eXM lets the operator:
•
•
•
•
Turn the UPS On or Off.
Transfer into the various operating modes.
Silence alarms.
Check the status of the UPS and its external batteries, including all measured parameters, events
and alarms.
The main areas of the control panel are shown below in Figure 28 and explained in Table 13.
• Mimic Display - view the status of the Liebert eXM in single-line diagram format—indicators
show status by changing color when ON, flashing or OFF
• Liquid Crystal Display (LCD) and Navigation keys - view status and operational data from
the Liebert eXM in tabular format
• Control buttons - turn the Liebert eXM On or Off, silence alarms
Figure 28 Overview of control panel
EPO
EMERGENCY
3
INVERTER ON
4
5
Control
Buttons
INVERTER OFF
1
Mimic
Current
Path
8
2
FAULT CLEAR
6
7
F1
STATUS
F2
F3
F4
HELP
SILENCE ON/OFF
LCD and Menu Buttons
Table 13
Descriptions of UPS operator control and display panel
Mimic Current Path
Item #
Control Buttons
Function
Button
Function
1
Rectifier indicator (AC to DC)
EPO
EPO switch
2
Battery indicator (backup DC power)
INVERTER ON
Inverter start button
3
Bypass input indicator
INVERTER OFF
Inverter shutdown button
4
Inverter indicator (DC to AC)
FAULT CLEAR
Fault reset button
5
Load indicator (AC output)
SILENCE ON/OFF
Alarm mute button
6
UPS status and alarm indicator
7
Audible alarm (buzzer)
8
Protective cover for EPO button
Menu Buttons
Button
F1 through F4 and HELP
Function
LCD menu keys
NOTE
Help button menus are not active. Future units will ship with an F5 legend in place of the
HELP legend.
Liebert® eXM™
42
Operator Control and Display Panel
6.2
Mimic Display Indicators
Figure 29 Mimic display indicators location
Bypass
Indicator
Inverter
Indicator
Reflector
Indicator
Load
Indicator
Battery
Indicator
Status
Indicator
Status
Mimic indicators show the operational status of the Liebert eXM by their color—green, amber or
red—and whether they are On (solid), flashing or Off. Table 14 provides a guide to interpreting the
various states of the indicators.
Table 14
Mimic display status indicators
Indicator
(see Figure 29)
Green
Flashing Green / Amber
Red
Off
1. Rectifier
Load on Rectifier
Flashing Green: Utility normal,
Rectifier fault
but rectifier not operating
Rectifier is normal, but utility
is abnormal
2. Battery
Battery Powering
the Load
Flashing Green: Battery
pre-warning (low battery)
Battery or battery
converter abnormal*
Battery and converter are
normal, and battery is not
discharging
3. Bypass
Load on Bypass
Power
Bypass out of
normal range
Bypass Normal
4. Inverter
Inverter Powering Flashing Green: Inverter on
the Load Normally standby
Inverter fault
Inverter normal but Off
5. Load
UPS output On
UPS output overloaded
UPS has no output power
6. Status
No Alarms—UPS Amber: UPS has a general
Working Normally alarm
—
—
UPS has a serious alarm
—
* Battery or battery converter abnormal events include these event messages (see Table 41 in Appendix B): No Battery, Battery Replaced,
Battery Reverse, Batt. Conv. Over. Curr., Batt. Converter Fault, Batt. Converter Overtemp.
43
Liebert® eXM™
Operator Control and Display Panel
6.3
Control Buttons
The Control Buttons on the front panel may be used to shut down the UPS completely, turn the
inverter on or off, restart the UPS after a fault and silence the alarm, as shown in Figure 30. The
function of each button is described in Table 15.
NOTE
To activate a button properly, press and hold until you hear a short beep—about two seconds.
Figure 30 Control button layout
EPO
EMERGENCY
INVERTER ON
INVERTER OFF
FAULT CLEAR
F1
STATUS
F2
F3
F4
HELP
EPO Button
Cover
EPO Button
Inverter On
Button
Inverter Off
Button
Fault Clear
Button
Silence
On/Off Button
SILENCE ON/OFF
LCD Navigation Keys
Table 15
Control buttons
Button
(see Figure 30)
Function
EPO
Completely shuts down the UPS, including the static switch.
CAUTION: Use caution before pressing the Emergency Power Off (EPO) button. This
button completely shuts down the unit and the critical load.
INVERTER ON
Press this button to start the inverter and transfer from static bypass to inverter.
NOTE: If the inverter is not ready, this will not activate the UPS.
INVERTER OFF
Press this button to shut down the inverter during operation. The load will be transferred
to static bypass.
FAULT CLEAR
After the UPS shuts down due to a fault and the alarm condition has been resolved, press
this button to clear the fault and restart the UPS.
SILENCE ON/OFF
Press this button once to silence the alarm buzzer when an alarm is active. Any new fault
will sound the buzzer again.
If the alarm buzzer is not beeping, press this button to test the alarm sound.
Liebert® eXM™
44
Operator Control and Display Panel
6.4
Alarm Buzzer
The alarm buzzer produces three types of sounds:
• Single beep - when any Control button is pressed
• Single beep repeating every two seconds - the system has a general alarm
• Continuous - the system has a serious fault
If the alarm buzzer makes no sound, the system may be operating properly or the alarm may have
been silenced manually.
Figure 31 Alarm buzzer location
INVERTER ON
INVERTER OFF
FAULT CLEAR
STATUS
F1
F2
F3
F4
HELP
SILENCE ON/OFF
Buzzer
45
Liebert® eXM™
Operator Control and Display Panel
6.5
LCD Overview
The LCD on the front panel has five main sections, as shown in Figure 32. Press the F1 key below
the LCD to scroll through these sections.
•
•
•
•
UPS system information - view UPS name and model, date and time, overall status.
LCD Menu - choose a category of data items to appear below the menus (see Table 17).
Data and settings - view data items for the selected menu (see Table 17).
Current status messages - check the most recent UPS event and alarm messages (see Table 41
in Appendix B).
• Navigation key icons - look at the icon above each navigation key to determine how the key
operates when pressed (see 6.6 - Navigation Keys).
The LCD displays alarm information in real time. After appearing in the current status section of the
LCD, status messages are stored in the history log—512 records can be stored and retrieved.
Figure 32 Sections of the LCD
UPS System Information
Single
Current status
Time
eXM
Alarms
0 2 :1 7 : 4 7
L1-N/L2 L2-N/L3 L3-N/L1
L-N voltage (V) 121.4 122.7
121.7
L-N current (A) 12.2
14.2
13.5
Frequency (Hz) 59.96 59.96
59.96
L-L voltage (V) 211.3 211.6
210.5
Power factor
0.00
0.00
0.00
E-Mail
Notification
Icon
Mains
Current menu
Menu icons
Return to Output
Menu
Move to
Next Menu
F1
Liebert® eXM™
F2
F3
46
F4
HELP
Operator Control and Display Panel
6.6
Navigation Keys
The navigation keys on the front panel—F1 through F4 and Help—are used to access the LCD to view
the current status and other information about the Liebert eXM.
Navigation key icons on the LCD appear above each key to indicate its operation (see Table 16). The
keys are “soft keys” that can change functions according to the icon.
• Use F1 to move to the home portion of the LCD.
• Use F3 and F4 as cursor keys to move left and right or up and down, depending on the icons
displayed above the keys.
• Use F3 and F4 on the display simultaneously to view individual Module information such as
Input and Output conditions and individual Module Firmware versions
• Use F2 as an ESC key.
• Use HELP to access help information on the LCD or to enter a choice.
Table 16
Key
Icons for navigation keys
F1
Functions
Available
Home
F2
F3
F4
HELP
ESC
Left
Right
Enter
?
Exit
Up
47
Down
Help
Liebert® eXM™
Operator Control and Display Panel
6.7
LCD Menus and Data Items
The LCD menus provide access to the following categories of information and settings for the UPS.
Selecting a menu changes the information displayed in the UPS data items portion of the LCD. The
menu choices are listed below and described in detail in Table 17.
•
•
•
•
•
•
•
•
•
•
•
•
•
Mains—View utility power input data: voltage, current, frequency and power factor
Bypass—View bypass data: voltage and frequency
Output—View output data: voltage, current, frequency and power factor
Load—View load data: load percent, output current, output power and crest factor (CF)
System—View system data
Battery—View battery characteristics - voltage, current, temperature, remaining time and
capacity - and messages when the battery is boost/float charging or disconnected
Events—View the events log—displays all recent events added to the log (new records added at
end)
Records—Access the history log—displays all records in the log (new records added at end)
Language—Select a language for LCD text (choices appear in the native language)
Settings—Configure UPS settings: adjust the display contrast, choose a format for date display,
set the date and time, set up the UPS for modem communications (baud rate, address, mode and
phone numbers to dial for alarm notifications) and change the password
Command—Start or stop a battery maintenance test, battery capacity test or system test
Run Time—View available backup time for the UPS and bypass
Version—View firmware versions for the inverter, rectifier and software display board and the
model information for the UPS
Figure 33 shows a menu tree of the options available from the LCD menus.
Liebert® eXM™
48
Operator Control and Display Panel
Figure 33 Menu tree
Mains (input)
Bypass
Output
Load
System
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
L-N voltage (V)
Frequency (Hz)
L-L voltage (V)
L-N voltage (V)
L-N current (A)
Frequency (Hz)
L-L voltage (V)
Power factor
Sout (kVA)
Pout (kW)
Qout (kVAR)
Load level %
Crest factor
Sout (kVA)
Pout (kW)
Qout (kVAR)
Battery
Events
Records
Language
Battery voltage (V)
Battery current (A)
Battery temperature (°C)
Remain Time Min.
Battery capacity (%)
Battery boost charging
Battery float charging
Battery disconnected
(events log)
(history log)
(Choices for
display)
Settings
Command
Run Time
Version
Display contrast
Date format set
Date & time
Comm1 baud rate
Comm2 baud rate
Comm3 baud rate
Communication address
Communication mode
Callback times
Phone No.1
Phone No.2
Phone No.3
Command password
Protocol
ECO Mode
Battery Equalize Charge
Battery maintenance test
Battery capacity test
System test
Stop testing
Freshening Charge
Stop Freshening Charge
Modem Auto-answer enable
Battery Reset
UPS Run Time
Byp Run Time
Monitor version
Rectifier version
Inverter version
Bypass version
UPS model
49
Liebert® eXM™
Operator Control and Display Panel
6.8
Language Selection
The LCD menus and data display are available in 12 languages (Chinese, Dutch, English, French,
German, Italian, Japanese, Polish, Portuguese, Russian, Spanish and Swedish). To select a different
language:
1. From the main menu, press the F4 (shift) key to move the cursor to the Language menu at the
bottom of the screen.
2. Press HELP to access the language choices.
3. Press F3 and F4 (left and right arrows) as needed to highlight the desired language.
4. Use HELP to select the required language.
5. Return to the main menu by repeatedly pressing F2 (ESC) and F1.
All text on the LCD will now be displayed in the selected language.
Figure 34 Language selection screen
Single
POLSKI
eXM
0 2 :1 7 : 4 7
ENGLISH
DEUTSCH
FRANCAIS
ITALIANO
ESPANOL NEDERLANDS SVENSKA
PORTUGUES
Language
F1
6.9
F2
F3
F4
HELP
Current Date and Time
To change the system date and time:
1. From the main menu, press the F4 (shift) key to move the cursor to the Settings menu at the
bottom of the screen.
2. Press HELP to select the Settings menu.
3. Use F3 and F4 (up and down) to select the Date & Time option, then press HELP (enter).
4. Use F4 to position the cursor on the row where the date and time are displayed, then press
HELP (enter).
5. Using the F3 (up), enter the current time and date information.
6. Press HELP (enter) to save the settings.
7. Press F2 (ESC), then F1 to return to the main screen.
Liebert® eXM™
50
Operator Control and Display Panel
Figure 35 Date and time screen
Single
eXM
0 2 :1 7 : 4 7
M /D /Y
Y /M /D
Y /M /D
D isplay contrast
D ate form at set
D /M /Y
Date & tim e
2010-07-15
02: 17: 45
Settings
F1
6.10
F2
F3
F4
HELP
UPS History Log
The Liebert eXM displays status changes as they occur and stores that data in the history log, as
shown in Figure 36.
• History Log: When a record moves to the history log, the time the status changed is recorded.
The history log can hold up to 512 records. History log records may be viewed by accessing the
Records menu.
Figure 36 History log records
Single
1
3
6
eXM
M ains volt. abnorm al
2010-06-07
2010-06-07
M ains volt. abnorm al
2010-06-07
2010-06-07
M ains volt. abnorm al
2010-06-07
2010-06-07
Records
F1
F2
F3
0 2 :1 7 : 4 7
09:48: 10
09:48: 10
09:48: 10
09:48: 10
History log
(records menu)
09:48: 10
09:48: 10
F4
HELP
See Table 41 in Appendix B for a complete list of status messages, along with a description and any
recommended actions.
51
Liebert® eXM™
Operator Control and Display Panel
6.11
Types of LCD Screens
This section provides a quick guide to the main types of LCD screens.
6.11.1 Opening Display
As the UPS begins powering up, the opening display appears, as shown in Figure 37.
Figure 37 Opening display
Single
eXM
0 2 :1 7 : 4 7
EMERSON®
Network Power
Pres s any k ey back to main menu
F1
F2
F3
F4
HELP
6.11.2 Default Screen
After the UPS has powered up and completed a self-test, the output screen appears, as shown in
Figure 38. This window is the default screen.
Figure 38 Default screen
Single
eXM
0 2 :1 7 : 4 7
L1-N/L2 L2-N/L3 L3-N/L1
L-N voltage (V) 118.4 119.2
121.6
L-N current (A) 0.0
0.0
13.5
Frequency (Hz ) 59.97 59.97
59.97
L-L voltage (V) 205.7 208.4
207.9
Power factor
0.00
0.00
0.00
Output
F1
Liebert® eXM™
F2
F3
52
F4
HELP
Operator Control and Display Panel
6.11.3 UPS Help Screen
Press the HELP key below the LCD to display the Help window. (Press the HELP key again to exit
the Help window.)
6.11.4 Screen Saver Window
If there has been no interaction with the Liebert eXM’s LCD for 2 minutes, the screen saver window
appears. It remains on the LCD for 2 minutes, then the screen will go dark. The LCD will become
active again when any key is pressed.
Figure 39 Screen saver window
Single
eXM
0 2 :1 7 : 4 7
EMERSON®
Network Power
Press any key back to main menu
F1
6.12
F2
F3
F4
HELP
Pop-Up Windows
Pop-up prompt windows appear when the user must confirm a choice or perform an operation. This
section describes the pop-up windows. Some operations require entering a password; refer to 6.12.9 Enter Control Password for help.
6.12.1 From Bypass to Inverter Mode With Power Interruption
If the bypass voltage or frequency exceeds the synchronized range and
utility voltage or frequency is normal, the inverter cannot be in
Transfer with Interrupt,
please confirm or cancel
synchronization with the bypass, and the output can only transfer to
inverter after an interruption of about 15ms when the user presses the
INVERTER ON button. Before transferring, the system will let the
user confirm whether the interruption can be accepted, as shown at right. If the bypass voltage
returns to normal before the user makes confirmation, the UPS will transfer to inverter mode
automatically. At the same time, the prompt window will close.
6.12.2 From Inverter to Bypass Mode With Interruption
If the bypass voltage or frequency exceeds the synchronized range and
the UPS is in inverter mode, the system must let the user confirm and
This operation leads to
accept the power interruption danger before pressing the INVERTER
output shutdown,
Confirm or cancel
OFF button to shut down the output of the inverter. The user can also
cancel the shutdown operation, as shown at right. If the bypass voltage
returns to normal before the user makes the confirmation, the UPS
will transfer to bypass operation mode automatically, and at the same time the prompt window will
disappear soon.
53
Liebert® eXM™
Operator Control and Display Panel
6.12.3 System Self-Test
When a system self-test is completed, a pop-up window reports the
results of the test, as shown at right.
• Press the Help (Enter) key and the pop-up window closes.
System Self-Test finished.
Please check the current
warnings
6.12.4 Battery Capacity Test Confirmation
When a battery capacity test is started from the Command menu, the
battery will be discharged to low-battery warning level. The Liebert
eXM asks for confirmation before the test is started, as shown at right.
Battery will be depleted,
Confirm or cancel
• To confirm the choice and begin the battery capacity test, press the
Help (Enter) key and the pop-up window disappears.
• To cancel the test, press the F2 (ESC) key. The pop-up window disappears.
NOTE
For a battery capacity test to function properly, the load must be between 20% and 100%.
6.12.5 Battery Self-Test Aborted, Condition Not Met
When a battery capacity test is started from the Command menu and
the battery self-test condition is inadequate, the Liebert eXM will not
perform a battery test. User should check whether the battery state is
boost charging and whether the load level is greater than 20 percent.
Battery Self-Test aborted,
Conditions not met
• Press the Help (Enter) key and the pop-up window closes.
6.12.6 Battery Equalize Charge
The user can Enable or Disable the Battery Equalize Charge of the
batteries. Use the F3 or F4 button to Enable or Disable the Battery
Equalize feature.
• Press the Help (Enter) key and the pop-up window closes.
Battery equalize charge
enabled
Battery equalize charge
disabled
6.12.7 Battery Reset
The user can reset the battery statistics to a new battery state. Use the
F3 or F4 button to select Battery Reset
• Press the Help (Enter) key and the pop-up window closes.
Battery reset
6.12.8 Battery Refresh Charge Aborted, Condition Not Met
When a battery refreshening charge is started from the Command
menu and battery refreshening condition fails to meet requirements,
the Liebert eXM will not perform a battery refreshening charge. User
should check if boost charging condition is not enough, such as (No
battery, charger failed, etc.).
Battery Refresh Charge
aborted,
Conditions not met
• Press the Help (Enter) key and the pop-up window closes.
6.12.9 Enter Control Password
When a UPS control operation requires a password, the pop-up at
right will be displayed. The password is 12345.
Use the Right or Left arrow to move the cursor along the password
field. Then use the Up and Down arrows to advance until the desired
number is displayed. Enter the password one digit at a time.
Liebert® eXM™
54
Enter Control Password
*****
Operator Control and Display Panel
Table 17
UPS menus and data window items
Menu Type
Mains
(input)
Bypass
Output
Load
System
Battery
Item Type
Explanation
L-N voltage (V)
Phase voltage
L-N current (A)
Phase current
Frequency (Hz)
Input frequency
L-L voltage (V)
Line-line voltage
Power factor
Power factor
L-N voltage (V)
Phase voltage
Frequency (Hz)
Bypass frequency
L-L voltage (A)
Line-line voltage
L-N voltage (V)
Phase voltage
L-N current (A)
Phase current
Frequency (Hz)
Output frequency
L-L voltage (V)
Line-line voltage
Power factor
Power factor
Sout (kVA)
Sout: Apparent power
Pout (kW)
Pout: Active power
Qout (kVAR)
Qout: Reactive power
Loadlevel %
The percent of the UPS rating load
Crest factor
Output current Crest Factor
Sout (kVA)
Sout: Apparent power
Pout (kW)
Pout: Active power
Qout (kVAR)
Qout: Reactive power
Single unit
When configured as a single unit, UPS displays only native load, no system
load.
Battery voltage (V)
Battery bus voltage
Battery current (A)
Battery bus current
Battery temperature (°C)
Internal battery temperature °C
Remain Time Min.
Battery run time remaining
Battery boost charging
Battery is boost charging
Battery float charging
Battery is float charging
Battery equalize charging
Battery charge is equalized
Battery disconnected
Battery is not connected
Events
(event log)
Displays recent events
Records
(history log)
Displays all records in the history log
Language
(choices for text displayed)
User may select any of 12 languages for LCD text.
55
Liebert® eXM™
Operator Control and Display Panel
Table 17
UPS menus and data window items (continued)
Menu Type
Settings
Command
(Start / Stop
Battery &
System
Tests)
Run Time
Version
Liebert® eXM™
Item Type
Explanation
Display contrast
Adjust the LCD display contrast
Date format set
Choose the format for date display: YYYY MM DD, DD MM YYYY and MM
DD YYYY
Date & time
Set the date and time
Comm1 baud rate
Communication baud rate setting for Liebert IntelliSlot 1
Comm2 baud rate
Communication baud rate setting for Liebert IntelliSlot 2
Comm3 baud rate
Communication baud rate setting for Liebert IntelliSlot 3
Communication address
This setting is applicable to RS485 communication mode
Communication mode
Communication Mode Setting
Callback times
When Liebert IntelliSlot 1 Communication mode is Modem, this parameter
sets the number of times a number is redialed to send an alarm notification.
Phone No.1
When Liebert IntelliSlot 1 Communication mode is Modem, this is the first
phone number to be dialed (to send an alarm notification).
Phone No.2
When Liebert IntelliSlot 1 Communication mode is Modem, this is the second
phone number to be dialed (to send an alarm notification).
Phone No.3
When Liebert IntelliSlot 1 Communication mode is Modem, this is the third
phone number to be dialed (to send an alarm notification).
Command password
User can modify the command password.
Protocol
System protocol
ECO Mode
Configures UPS for ECO mode
Battery Equalize Charge
Configures UPS for equalize charge
Battery maintenance test
This test performs a partial discharge of the battery to obtain a rough
estimate of the battery capacity. Load must be between 20% and 80%.
Battery capacity test
This test performs a full discharge of the battery to obtain a precise measure
of the battery capacity. Load must be between 20% and 80%.
System test
This is a self-test of the UPS. When the user activates this function, a pop-up
window appears about 5 seconds later to show the results.
Stop testing
Manually stops a battery maintenance test, battery capacity test or system
test.
Freshening Charge
Allows a temporary Equalize charge for the batteries. This charge is
configurable for 1 to 36 hours.
Stop Freshening Charge
Manually stops a Freshening Charge.
Modem Auto-answer
enabled
Manually enable the modem's auto-answer function.
Battery Reset
Resets battery statistics
UPS Run Time
UPS Run Time
Byp Run Time
Bypass Run Time
UPS model
Provides UPS model information—for example, 208V-60Hz.
Monitor Version
Monitor Firmware Version
Rectifier Version
Rectifier Firmware Version
Inverter Version
Inverter Firmware Version
Bypass Version
Bypass Firmware Version
56
Operation
7.0
OPERATION
! WARNING
Risk of electrical shock. Can cause personal injury or death. This UPS has several circuits
that are energized with high DC as well as AC voltages. Check for voltage with both AC and
DC voltmeters before working within the UPS. Check for voltage with both AC and DC
voltmeters before making contact.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the UPS or preparing the UPS for
installation. When performing maintenance with any part of the equipment under power,
service personnel and test equipment should be standing on rubber mats.
! AVERTISSMENT
Risque de décharge électrique pouvant causer des blessures graves, voire mortelles. Ce
système ASC comporte plusieurs circuits à haute tension c.a et c.c. Vérifiez les tensions au
moyen de voltmètres c.a. et c.c. avant d’utiliser le système ASC. Vérifiez les tensions avec des
voltmètres c.a. et c.c. avant d’établir tout contact.
Seuls des employés qualifiés et dûment formés portant un casque, des gants, des chaussures
et des lunettes de sécurité adéquats doivent se charger d’installer le système ASC ou de le
préparer pour l’installation. Les responsables de l’entretien et l’équipement d’essai doivent
reposer sur des tapis de caoutchouc lors de toute intervention sur une pièce d’équipement sous
tension.
The Liebert eXM operates in the modes shown in Figure 7.1 - Liebert eXM Operating Modes. This
section describes various kinds of operating procedures under each operating mode, including transfer
between operating modes, UPS setting and procedures for turning on/off inverter. As shown in SL25651, the Liebert eXM Battery Cabinet manual, the AC utility source is supplied through the input
breaker, and the rectifier converts the alternating current into DC power. The inverter converts the
AC power from the utility—or DC power from an optional External Battery Cabinet—into AC power
for the load. The batteries power the load through the inverter in the event of a power failure. The
utility source can also power the load through the static bypass. If maintenance or repair of the UPS is
necessary, the load can be switched without interruption in service using the optional Liebert MBC.
7.1
Liebert eXM Operating Modes
The UPS is designed to operate as an on-line, double-conversion, reverse-transfer system in the
following modes:
• Normal Mode
• Battery Mode
• Auto-Restart Mode
• ECO Mode
• Bypass Mode
• Battery Start Mode
• Maintenance Mode (Manual Bypass)
• Sleep Mode
• Paralleling Mode
• Output Voltage Adjustment
• Generator Mode
NOTE
1. The user controls and indicators mentioned in these procedures are identified in 6.0 Operator Control and Display Panel.
2. The audible alarm may sound at various points during these procedures. It can be canceled
at any time by pressing the SILENCE ON/OFF push button.
NOTE
This unit refers to some modes and conditions that are set or adjusted using proprietary service
software. To take advantage of all the available features for the Liebert eXM, the unit must be
commissioned by an Emerson-authorized engineer.
57
Liebert® eXM™
Operation
Normal Mode
Operating in normal mode, the Liebert eXM’s rectifier derives power from a utility AC source and
supplies regulated DC power to the inverter, which regenerates precise AC power to supply the
connected equipment. The rectifier also uses the utility source power to charge the batteries.
Battery Mode—Requires Optional External Battery Cabinet
When utility AC power fails, the Liebert eXM protects the critical load by instantaneously channeling
battery power from optional External Battery Cabinets to the inverter, which continues supporting
the critical load without interruption. When utility power returns and is within acceptable limits, the
Liebert eXM automatically shifts back to Normal mode, with the rectifier powering the critical load.
Auto-Restart Mode
The battery may become exhausted following an extended AC utility failure. The inverter shuts down
when the battery reaches the End of Discharge voltage (EOD). The UPS may be programmed to “Auto
Recovery after EOD” after a delay time if the AC utility recovers. This mode and any delay time may
be programmed by the commissioning engineer.
Bypass Mode
When the Liebert eXM is in bypass mode, the load is directly supported by utility power and is
without battery backup protection.
The Liebert eXM’s static transfer switch will shift the load from the inverter to bypass mode without
interruption in AC power if the inverter is synchronous with the bypass and any of the following occurs:
• inverter fails
• inverter overload capacity is exceeded
• inverter is manually turned off by user
NOTE
If the inverter is asynchronous with the bypass, the static switch will transfer the load from the
inverter to the bypass WITH interruption in AC power to the critical load. This interruption
will be less than 15ms (in 50Hz), or less than 13.33ms (in 60Hz). This interruption time may be
altered by modifying the Output transfer interrupt time setting.
ECO Mode (Single-Module UPS System Only)
When ECO mode is selected, the Liebert eXM switches inverter power from the UPS input to the
bypass input to save energy by improving UPS efficiency. In this mode, the bypass is the preferred
source. If the bypass voltage or frequency becomes outside preset limits, the UPS load is transferred
back to the inverter.
Battery Start Mode
The battery start option permits starting the Liebert eXM with power supplied only by the batteries
(at charged condition).
Maintenance Mode
For maintenance or repair, the Liebert eXM may be operated in maintenance mode. To place the
Liebert eXM in maintenance mode, follow the instructions in 7.4 - Switching the UPS from
Normal Operation to Maintenance Bypass.
! WARNING
Risk of arc flash and electric shock. Can cause equipment damage, injury and death
The UPS input and output must be protected with external overcurrent protection devices. In
maintenance mode, the input and output busbars remain energized and present an electric
shock hazard.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
L’entrée et la sortie du système ASC doivent être protégées par des dispositifs de protection
de surintensité externes. En mode d’entretien, les barres omnibus d’entrée et de sortie
demeurent sous tension et présentent un risque de décharge électrique.
Liebert® eXM™
58
Operation
Paralleling Mode
This option is available only on 208V Input Parallel with the optional Liebert eXM Paralleling
Cabinet. It can parallel the following:
• two Liebert eXM’s
• 120-200kW frames in any module capacity
• redundant
• can allow up to 400kW of load capacity
• paralleling configurations: 1+1 is 120-200kVA; 2+0 is 120-160kVA; 2+1 is 120-160kVA
A sharing inductor and optional Liebert eXM Paralleling Cabinet are required for parallel units.
NOTE
To parallel non-208 input voltages, an upstream transformer must drop the input voltage to
208V before the paralleling gear.
Output Voltage Adjustment
This feature allows a Liebert Customer Engineer to adjust the Liebert eXM’s output voltage over a
range of -5% to +5% of nominal. The output voltage adjustment can be used to compensate for any
drop in line voltage that may occur when the UPS is a significant distance from the protected load. In
addition, it can be used to optimize the UPS output voltage for loads that operate more efficiently at a
voltage different from the nominal Liebert eXM output voltage.
Generator Mode
The Liebert eXM UPS can be set up for operation in Generator Mode by an Emerson Network Power
Liebert Services engineer. The setup requires connecting J26 Pin 2 to Pin 4.
7.2
UPS Startup
The Liebert eXM must be fully installed and commissioned before startup, and external power
isolators must be closed. Once those general conditions are met, the UPS may be started.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
During this procedure the output terminals will become live.
If any load equipment is connected to the UPS output terminals, please check with the load
user and ascertain whether it is safe to apply power to the load. If the load is not ready to
receive power, then ensure that it is safely isolated from the UPS output terminals.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
Durant cette procédure, les bornes de sortie seront sous tension.
Si un équipement chargé est raccordé aux bornes de sortie du système ASC, veuillez vous
informer auprès de l’utilisateur de la charge s’il est sécuritaire d’appliquer une alimentation à
la charge. Si la charge n’est pas prête à recevoir une alimentation, alors assurez-vous qu’elle
est isolée sécuritairement des bornes de sortie du système ASC.
59
Liebert® eXM™
Operation
7.2.1
Startup Procedure
To start the UPS from a fully powered-down condition:
1.
2.
3.
4.
5.
Open the external power switch.
Open the UPS door.
Connect the power supply cables.
Ensure the correct phase rotation.
Close the external input circuit breaker and connect input power.
The LCD activates. The rectifier indicator flashes while the rectifier is starting. The rectifier
enters normal operation state, and after about 30 seconds, the rectifier indicator stops blinking
and is illuminated in a steady green. After initialization, the bypass static switch turns on. The
mimic LEDs appear as shown Table 18.
Table 18
Mimic indicators after initialization
LED
Status
Rectifier Indicator
Green
Battery Indicator
Red
Bypass Indicator
Green
Inverter Indicator
Off
Load Indicator
Green
Status Indicator
Amber
6. Ensure that the Liebert power module assembly ready switches are latched (in Down position).
7. Close the external output circuit breaker.
8. Press the INVERTER ON button for 2 seconds. The inverter indicator flashes while the inverter
is starting. After the inverter is ready, the UPS transfers from bypass to inverter, the bypass
indicator turns Off, and the inverter indicator turns On. The UPS is in Normal Mode. The mimic
LEDs will appear as shown in Table 19.
Table 19
Mimic indicators for normal mode operation with battery breaker open
LED
Status
Rectifier Indicator
Green
Battery Indicator
Red
Bypass Indicator
Off
Inverter Indicator
Green
Load Indicator
Green
Status Indicator
Amber
9. Close the battery breaker.
Table 20
Mimic indicators for normal mode operation with battery breaker closed
LED
Status
Rectifier Indicator
Green
Battery Indicator
Off
Bypass Indicator
Off
Inverter Indicator
Green
Load Indicator
Green
Status Indicator
Green
Liebert® eXM™
60
Operation
7.2.2
Startup in ECO Mode
ECO Mode is available only on a single-module Liebert eXM.
1. Verify that input power is available.
2. Select ECO Mode on the Control Panel.
3. Verify that the bypass indicator remains green to indicate that the load is supplied by the bypass
input. The inverter indicator will flash green to indicate that the inverter is on standby in ECO
Mode.
The UPS is now operating in ECO Mode.
7.2.3
Switching Between UPS Operation Modes
To switch from Normal Mode to Static Bypass Mode—Press the INVERTER OFF button to
switch to Bypass Mode (see Figure 30).
NOTE
In Static Bypass Mode, the load is being powered by the utility and is not protected from
fluctuations in input power: spikes, sags and failure.
To Switch From Bypass Mode To Normal mode—When the UPS is in Bypass Mode, press the
INVERTER ON button. After the inverter enters normal operation, the UPS transfers to Normal
Mode.
To switch from Normal Mode to ECO Mode—Select ECO Mode using the Liebert eXM control
panel. After a 5-minute qualification of the bypass voltage, the UPS will transfer to bypass.
The Bypass indicator on the MIMIC display will illuminate Green to indicate that the UPS is
operating properly with input power form the bypass input. The Inverter indicator will flash Green to
indicate that the Inverter is on standby in ECO mode.
NOTE
In ECO Mode, the load is being powered by the utility as long as the bypass source remains
within set limits.
To switch from ECO Mode to Normal Mode—When the UPS is in ECO Mode, press the
INVERTER ON button. After the inverter enters normal operation, the UPS transfers to Normal Mode.
7.3
UPS Battery Start
The Battery Start option permits starting the Liebert eXM with power supplied only by the batteries
(at charged condition).
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
Before attempting to start the UPS without utility power present, ensure that the batteries
are fully charged—over 2.1V per cell—and will supply adequate run time to the load. Load
requirements may deplete batteries that are not fully charged an may cause an unintended
UPS shutdown.
1. Verify that the battery cabinet is properly connected (see Figure 24) and that the battery breaker
is closed.
2. Press the Battery Start button on the front panel of any Liebert power module assembly for
2 seconds.
The LCD displays the start screen, and the battery indicator flashes green. It stops flashing and
becomes solid green about 30 seconds after the rectifiers enter normal operation.
3. Press and hold the INVERTER ON key for two seconds, and the UPS will begin operating in
battery mode.
61
Liebert® eXM™
Operation
7.4
Switching the UPS from Normal Operation to Maintenance Bypass
Follow the procedure below to transfer the load from the UPS inverter output to the Maintenance
Bypass system.
NOTICE
Risk of loss of power to the connected load.
Can cause equipment damage.
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. Failure to follow these instructions will
result in loss of power and possible damage to critical equipment.
Before performing this operation, read any messages on the LCD to be sure that bypass
supply is regular and the inverter is synchronous with it. If those conditions are not present,
there is a risk of a short interruption in powering the load.
This procedure assumes that UPS is operating normally.
1. Press the INVERTER OFF button on the right side of the Operator Control Panel for longer than
2 seconds.
The Inverter indicator will turn Off, the status indicator will turn amber and an audible alarm
will sound. The load will transfer to static bypass (internal) and the inverter will shut off.
NOTE
Pressing the Alarm Silence Switch cancels the audible alarm, but leaves the warning message
displayed until the appropriate condition is rectified.
2. Open the Liebert MBC door to gain access to the bypass isolation breaker (BIB), maintenance
bypass breaker (MBB) and maintenance isolation breaker (MIB).
3. When the lamp indicator on the MBC is illuminated, press and hold the adjacent push button and
remove the Key from the lock (K0).
4. Insert the Key into the lock on the MBB and turn the Key.
5. Close the MBB.
6. Verify the MBB is closed. Failure to close the MBB will interrupt power to the load.
7. Open the MIB.
8. Remove the key from the lock on the MIB. Insert the key into the lock (K0) and turn the key.
9. The UPS system is now isolated from the critical load.
10. For a single-input system, the bypass isolation breaker (BIB) remains closed; this allows power to
remain present at the UPS input; refer to Figure 40.
11. For a single-source, dual-input system, the bypass isolation breaker (BIB) can be opened to
further isolate the UPS from input power; refer to Figure 41.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Wait 5 minutes for the internal DC busbar capacitors to discharge before attempting
to remove the internal protective barriers.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels,
des blessures et même la mort.
Attendez 5 minutes que les condensateurs de barre omnibus c.c. internes se
déchargent avant d’essayer de retirer les barrières de protection internes.
Liebert® eXM™
62
Operation
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Even with the UPS in maintenance bypass and Off, portions of the Liebert eXM system are
still energized. Service must be performed by properly trained and qualified personnel only.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
Même lorsque le système ASC est en mode de dérivation d’entretien et hors tension, des
parties du système eXM de Liebert demeurent sous tension. L’entretien ne doit être confié
qu’à un personnel qualifié et dûment formé.
NOTICE
Risk of power loss to connected load. Can cause damage to equipment.
The load equipment is not protected from normal supply aberrations when the Liebert eXM is
operating in the maintenance bypass mode.
Figure 40 One-line diagram, single-input UPS with 3-breaker maintenance bypass cabinet and panelboard
MAINTENANCE BYPASS CABINET
* Bypass
AC Input
4 Wire + GND
MBB
BIB
MIB
Output
Busbar
AC Output 208V
4 Wire + GND
Static Bypass
UPS CABINET
BATTERY
Notes
1. Install in accordance with national and
local electrical codes.
2. Input and bypass must share the same
single source.
3. A neutral is required from the sytem AC
input source. Emerson recommends a
full capacity neutral and grounding conductors.
4. Bypass and rectifier input and output cables
must be run in separate conduits
5. Control wiring must be run in separate conduits.
63
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection By Others
Field-Supplied Wiring
EXM11011
Rev. 1
Liebert® eXM™
Operation
7.5
Switching the UPS from Maintenance Bypass to Normal Operation
Follow the procedure below to transfer the load from the Maintenance Bypass system to the UPS
inverter output.
These conditions must be met for this operation to proceed:
• the UPS must be operating normally
• the BIB breaker must be closed
• the UPS system must be in the Maintenance Bypass mode of operation.
NOTICE
Risk of loss of power to the connected load.
Can cause equipment damage.
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. Failure to follow these instructions will
result in loss of power and possible damage to critical equipment.
Before performing this operation, read any messages on the LCD to be sure that bypass
supply is regular and the inverter is synchronous with it. If those conditions are not present,
there is a risk of a short interruption in powering the load.
1. Verify that the Liebert eXM is in Maintenance Bypass mode.
NOTE
Pressing the Alarm Silence Switch cancels the audible alarm, but leaves the warning message
displayed until the appropriate condition is rectified.
2. Open the Liebert MBC door to gain access to the bypass isolation breaker (BIB), maintenance
bypass breaker (MBB) and the maintenance isolation breaker (MIB).
3. When the Lamp indicator on the MBC is illuminated, press and hold the adjacent push button
and remove the key from the lock (K0).
4. Insert the key into the lock on the MIB, and turn the key.
5. Close the MIB.
6. Verify the MIB is closed. Failure to close the MIB will interrupt power to the load.
7. Open MBB.
8. Remove the key from the lock on the MBB.
9. Insert the key into the lock (K0) and turn the key.
The UPS system is now supplying power to the critical load.
10. Press the INVERTER ON button on the right side of the Operator Control Panel for longer than
2 seconds.
The Inverter indicator flashes while the inverter is starting.
After the inverter is ready, the UPS transfers from static bypass to inverter, the bypass indicator
turns Off and the inverter indicator turns On. The UPS is in Normal Mode. The indicator will
appear as shown in Table 20.
Liebert® eXM™
64
Operation
7.6
De-Energize Liebert eXM with Maintenance Bypass Cabinet
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. This procedure will remove power from the
critical bus.
Take precautions by providing a backup power supply or shutting down equipment before deenergizing the Liebert eXM.
To de-energize the system:
1. On the UPS control panel, press and hold the INVERTER OFF button for 2 seconds.
2. Open all battery circuit breakers(s) including the internal battery breaker (if applicable).
3. If the MBC is an Emerson cabinet, open the Maintenance Isolation Circuit Breaker (MIB). If the
MBC is a customer-issued switchgear or a non-Emerson cabinet, open the breaker(s) that supply
power to the critical bus.
4. Open the Rectifier Input Circuit Breaker and Bypass Input Breaker (if dual input). If the MBC is
a customer-issued switchgear or a non-Emerson cabinet, open the breaker(s) that supply power to
the UPS input and bypass input (if dual input).
5. Allow 5 minutes for all DC circuits and capacitors to fully discharge.
6. Open the external feeder breaker to the MBC or bypass switchgear.
7. Install a Lockout/Tagout on the external feeder breaker to the MBC or bypass switchgear.
8. Use a digital multimeter to verify there is no AC or DC voltage present at the UPS input, output
and bypass bus bars.
9. Use a digital multimeter to verify there is no AC or DC voltage present at the MBC BIB, MIB and
MBB breakers.
65
Liebert® eXM™
Operation
7.7
De-Energize Liebert eXM Without Maintenance Bypass Cabinet
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
This procedure must be performed by properly trained and qualified personnel who are
knowledgeable about the operation of this system. This procedure will remove power from the
critical bus.
Take precautions by providing a backup power supply or shutting down equipment before deenergizing the Liebert eXM.
To de-energize the Liebert eXM:
1.
2.
3.
4.
5.
6.
On the UPS control panel, press and hold the INVERTER OFF button for 2 seconds.
Open all battery circuit breakers(s) including the internal battery breaker (if applicable).
Open the UPS output circuit breaker(s).
Open the UPS input circuit breaker and bypass circuit breaker (dual input systems only).
Allow 5 minutes for all DC circuits and capacitors to fully discharge.
Use a digital multimeter to verify there is no AC or DC voltage present at the UPS input, output
and bypass bus bars.
Figure 41 Typical configuration for single UPS
* Bypass
AC Input
4 Wire + GND
See Note 6
* Rectifier
AC Input
4 Wire + GND
See Note 6
Static Bypass
AC Output
208V
4 Wire + GND
UPS
BATTERY
* External Overcurrent Protection By Others
Field-Supplied Wiring
Notes:
1. Install in accordance with national and local electrical codes.
2. Input and bypass must share the same single source.
3. A neutral is required from the system AC input source. Emerson recommends
a full-capacity neutral conductor and grounding conductors.
4. Bypass and rectifier inputs and output cables must be run in separate conduits.
5. Control wiring must be run in separate conduits.
6. Customer must supply shunt trip breakers with 120V coils to the bypass
and rectifier inputs.
Liebert® eXM™
66
Operation
7.8
De-Energize a Liebert eXM Parallel System
To de-energize a parallel system:
1. On the control panel of UPS 1, press and hold INVERTER OFF for until inverter and output
LEDs turn off.The output LED will turn back on until Step 2.
2. On the control panel of UPS 2, press and hold INVERTER OFF for 2 seconds.
If the system is 1+1 or 2+0, both units go to bypass.
If the system is 2+1, the inverter LED and output LED will turn Off.
3. If applicable, on the control panel of UPS 3, press and hold INVERTER OFF for 2 seconds.
a. All UPS’s in the system will go to bypass.
4. Open all battery circuit breakers, if applicable.
5. Check the parallel switchgear.
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
The following procedure will remove power from the critical bus. Before beginning these
steps, shut down the connected load or transfer the connected load to an input power supply
not dependent on the Liebert eXM system that is being de-energized.
a. If the parallel switchgear is a matching Emerson cabinet, open the Maintenance Isolation
Circuit Breaker (MIB).
b. Open all Module Output Breakers (MOB).
6. Open the input breaker for each UPS and the breaker feeding the Maintenance Bypass Breaker
(MBB) in the parallel switch gear.
The system is now de-energized, and its output power supply is Off.
7.9
Re-Energize a De-Energized Liebert eXM Parallel System
To re-energize a parallel system:
1. Close the input breakers for all UPS’s
2. The LCD on each UPS will turn On and the rectifier LED will begin flashing green, starting the
rectifier.
The static switch LED and output LED will illuminate green.
The battery LED will illuminate red.
3. Verify that the rectifier, static switch and output LEDs are illuminated green and not flashing.
4. Close the Module Output Breakers (MOB) circuit breaker to each UPS.
5. Close the MIB circuit breaker.
! WARNING
Risk of electric shock. Can cause equipment damage, injury and death.
The following procedure will supply power to the critical bus. Before beginning, notify all
personnel that input power is being supplied to the circuits and verify that the connected load
is prepared for input current.
6. Verify that the K0 light illuminates.
7. On the control panel of UPS #1, press and hold INVERTER ON until the Inverter LED begins
flashing.
8. On the control panel of UPS #2, press and hold INVERTER ON until Inverter LED begins
flashing.
9. If applicable, on the control panel of UPS #3, press and hold INVERTER ON until inverter LED
begins flashing.
10. The load is now supported by the inverter.
11. Verify that the rectifier, inverter, and output LEDs are solid green.
12. Close all battery circuit breakers if applicable.
67
Liebert® eXM™
Operation
13. Verify that the battery LED turns Off.
14. Verify that all the power modules have green run lights; all LED’s on the front display are green
except for the battery LED which will be Off.
15. Check the LCD’s on each UPS to verify that there are no alarms on any UPS.
7.10
De-Energize and Isolate a Single Liebert eXM in a Parallel System
NOTICE
Risk of loss of power to the connected load. Can cause equipment damage.
The following procedure will remove power from one UPS in the parallel system. Do not
proceed if the other UPS’s supplying the critical load cannot accommodate the additional load.
If the UPS’s remaining energized cannot supply the full critical load, the system will go into
overload and may switch the load to bypass power, where it will not be protected from utility
power failure.
1. Determine whether the parallel system is set up for capacity or redundancy.
2. Verify that the UPS’s in the parallel system that will remain energized can support the connected
load.
3. On the UPS to be de-energized, press and hold INVERTER OFF until the inverter and output
LED’s turn Off.
NOTE
The load LED will turn back on until Step 4.
4. Open the Module Output Breaker (MOB) associated with the isolated UPS.
5. Verify that the rectifier LED is the only solid green LED on the display.
6. Open all battery circuit breakers associated with the UPS, if applicable. The battery LED will
turn red.
7. Open the input breaker feeding the associated UPS.
8. The UPS to be removed from the system is in the off state. You will see
parapowerCANCommAbnorm. Alarm annunciate on the other UPS(s) because they lost
communication with the isolated UPS.
7.11
Re-Energize a Single Liebert eXM in a Parallel System
! WARNING
Risk of electric shock. Can cause equipment damage, injury and death.
The following procedure will supply power to the critical bus. Before beginning,
notify all personnel that input power is being supplied to the circuits and verify that
the connected load is prepared for input current.
1. Close the input breaker feeding the Liebert eXM to be re-energized.
2. The LCD on the isolated UPS will turn On and the rectifier LED will begin flashing green,
starting the rectifier. The battery LED will turn RED.
3. On the parallel switchgear, close the Module Output Breaker (MOB) for the isolated UPS.
4. Verify that the output LED illuminates green and is not flashing.
5. On the control panel of the isolated UPS, press and hold INVERTER ON until the inverter LED
starts flashing green.
6. Verify that the rectifier, inverter and output LED’s are solid green.
7. Close all battery circuit breakers, if applicable.
8. Verify that the battery LED turns Off.
9. Verify that all the power modules have green run lights.
All LED’s on the front display are green except the battery LED, which will be Off.
10. Check the LCD’s on each UPS to verify that there are no alarms on any UPS.
Liebert® eXM™
68
Operation
7.12
Place a Liebert eXM Parallel System in Maintenance Bypass (with SKRU Interlock)
NOTICE
1.
2.
3.
4.
5.
6.
7.
8.
9.
Risk of loss of power to the connected load. Can cause equipment damage.
The UPS’s will not be supporting the connected load. The load will not be protected from
utility input power failure.
On the control panel of UPS #1, press and hold INVERTER OFF until inverter and output LEDs
turn off.
On the control panel of UPS #2, press and hold INVERTER OFF until inverter and output LED’s
turn Off.
If the system is 1+1 or 2+0, both units will transfer to bypass.
If the system is 2+1, the inverter LED and output LED will turn Off.
If applicable, on the control panel of UPS #3, press and hold INVERTER OFF until the inverter
and output LED’s turn Off.
All UPS’s in the system will transfer to bypass.
Verify that the inverter LED turns Off and that the static switch and output LED’s are solid
green on each UPS.
Open all battery circuit breakers, if applicable.
Check the parallel switch gear
Steps a through d are applicable only if the system has a Kirk key interlock. If the system does
not have a Kirk key interlock, skip to Step e.
a. Verify that the K0 light illuminates.
b. Press and hold the interlock push button.
c. While holding the push button, turn and release the key from the Kirk key interlock.
d. Insert the key into the Maintenance Bypass Breaker (MBB) lock and turn to unlock the latch
from the breaker.
e. Close MBB.
f. Open the Maintenance Isolation Breaker (MIB)
g. Steps h and i are applicable only if the system has a Kirk key interlock. If the system does
not have a Kirk key interlock, skip to Step 7.
h. Turn the key, locking MIB in place, then remove key.
i. Insert the key into K0 and turn it to lock the key in place.
The critical load is now on external maintenance bypass.
Open all Module Output Breakers (MOB)
Open the input breakers that feed each UPS.
The UPS’s are now Off, and the load is supplied by external maintenance bypass.
69
Liebert® eXM™
Operation
7.13
Place a Liebert eXM Parallel System Online from Maintenance Bypass (with SKRU
Interlock)
1. Close the input breaker feeding all UPS’s.
The LCD on all the UPS’s will turn On and the rectifier LED will begin flashing green, starting
the rectifier. The battery LED will turn RED.
2. On the parallel switchgear, close the Module Output Breaker (MOB) for all the UPS’s.
Verify that the output LED turns solid green on all UPS’s in the system.
3. This will energize the output of the UPS, and illuminate the interlock push button if the system
has a Kirk key interlock.
4. Check the parallel switch gear.
Steps a through c are applicable only if the system has a Kirk key interlock. If the system does
not have a Kirk key interlock, skip to Step e.
a. Press and hold the interlock push button.
b. While holding, turn and release the key from K0.
c. Insert the key into the Maintenance Isolation Breaker (MIB) lock and turn to unlock the latch
from the breaker.
d. Close the MIB.
e. Open the Maintenance Bypass Breaker (MBB)
f. Steps g and h are applicable only if the system has a kirk key interlock. If the system does
not have a Kirk key interlock, skip to Step 5.
g. Turn the key, locking MBB in place, and then remove the key.
h. Insert the key into the K0 and turn to lock the key in place. The critical load is now powered
by the UPS static switch.
5. On the control panel of UPS #1, press and hold INVERTER ON until the inverter LED starts
flashing green.
6. On the control panel of UPS #2, press and hold INVERTER ON until the inverter LED starts
flashing green.
7. If applicable, on the control panel of UPS #3, press and hold INVERTER ON until the inverter
LED starts flashing green.
8. Verify that the rectifier, inverter and output LED’s on each UPS in the system are solid green.
9. Close all battery circuit breakers, if applicable.
10. Verify that the battery LED on each UPS in the system turns Off.
11. Verify that all the power modules have green run lights.
All LED’s on the front display are green except the battery LED and static switch LED, which will
be Off.
12. Check the LCD’s on each UPS to verify that there are no alarms on any UPS.
The system is now online and supporting the load.
7.14
Emergency Shutdown With EPO
This circuit has been designed to switch Off the UPS in emergency conditions (e.g., fire, flood, etc.).
The system will turn Off the rectifier, inverter and stop powering the load immediately (including the
inverter and bypass), and the battery stops charging or discharging.
If the input utility is present, the UPS’s controls will remain active; however, the output will be
turned Off. To remove all power from the UPS, the external feeder breaker should be opened. (Refer
to Figure 28).
Liebert® eXM™
70
Operation
7.15
Auto Restart
When the main and bypass sources fail, the UPS draws power from the battery system to supply the
load until the batteries are depleted. When the UPS reaches its end of discharge (EOD) threshold, it
will shut down.
The UPS will automatically restart and enable output power:
• after utility power is restored
• if “Auto Recovery after EOD Enabling” is enabled in the UPS configuration (set by factory or by
Liebert Services)
• after the “Auto Recovery after EOD Delay Time” expires (the default delay is 10 minutes)
During the auto recovery delay, the Liebert eXM will be charging its batteries to provide a safety
margin for equipment shutdown if input power fails again.
If the “Auto Recovery after EOD Enabling” feature is disabled, the system must be restarted manually.
7.16
Reset After Shutdown for Emergency Stop (EPO Action) or Other Conditions
Once all appropriate measures have been taken to correct the problem indicated by the alarm
message appearing on the Operator Control Panel, carry out this procedure to restore the UPS to
regular operation following an EPO action or for the following reasons: Inverter Overtemperature,
Cut-Off Overload, Battery Overvoltage, excessive switching (BYP: XFER COUNT BLOCK), etc.
When the user confirms that the fault is cleared:
1. Press the FAULT CLEAR button to let the system exit the emergency off state.
2. Press the INVERTER ON button on the right side of the Operator Control Panel for longer than
2 seconds (after the rectifier has qualified).
NOTE
The rectifier will start automatically 5 minutes after the of overtemperature fault is cleared.
After the EPO button is pressed, if the input utility is removed, the UPS will shut down completely.
When input utility is restored, the EPO condition will clear, and the UPS will enable the static bypass
and restore the output.
7.17
Battery Protection
7.17.1 Battery Undervoltage Warning
Before the end of discharge, the Liebert eXM displays a low battery warning. After this warning, the
battery has the capacity for 5 minutes discharging with full load (default time). The Liebert eXM can
be user-configured to display this warning from 3 to 60 minutes before end-of-discharge.
71
Liebert® eXM™
Operation
7.17.2 Battery End-of-Discharge (EOD) Protection
If the battery voltage is lower than the end-of-discharge voltage, the battery converter will be shut
down.
Table 21
Battery DC intermediate circuit
Parameter
120 - 200kVA
Battery Bus Voltage
288
Number of Lead-Acid Cells
144 = [24 x 6 cell (12V) blocks], nominal
Float Voltage
2.25V/cell, selectable from 2.2 - 2.3V/cell
Temperature Compensation
-3.0mV/°C, selectable from 0 to -5.0mV/°C around 77°F (25°C) or 86°F (30°C) or
inhibit
Ripple Voltage
≤1%
Ripple Current
≤5%
Boost Charge Voltage
2.35 V/cell (selectable from 2.30-2.40V/cell)
Boost Control
• Float-boost current trigger 0.050 C10 (selectable 0.030-0.070)
• Boost-float current trigger 0.010 C10 (selectable 0.005-0.025)
24 hr safety time-out (selectable 8-30 hr)
Boost charge mode inhibit also selectable
End of Discharge
1.67 V/cell (selectable from 1.60-1.750V/cell)
Battery Charge
2.35 V/cell (selectable from 2.3-2.4V/cell)
Constant current and constant voltage charge mode
Programmable auto trigger or inhibit of boost mode
Battery Charging Power
Maximum Current
UPS (kVA) 120, 140, 160, 180, 200
Battery Charging Power, kW: 18, 21, 24, 27, 30
Maximum Charging Current, A: 54, 63, 72, 81, 90
Liebert® eXM™
72
Operation
7.18
Operation
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
The Liebert eXM contains high voltages internally. Components that can only be accessed by
opening the protective cover with tools cannot be serviced or replaced by the user.
Only properly trained and qualified service personnel are authorized to remove the protective
covers.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
L’armoire Liebert eXM contient des tensions élevées à l’interne. L’utilisateur ne peut ni
entretenir ni remplacer des composants accessibles uniquement en ouvrant le couvercle de
protection avec des outils.
Seul du personnel de service qualifié et dûment formé est autorisé à retirer les couvercles de
protection.
The Liebert eXM operates in the modes shown in Table 22. This section describes various kinds of
operating procedures under each operating mode, including transfer between operating modes, UPS
setting and procedures for turning on/off inverter.
Table 22
UPS operating modes
Operating Mode
Descriptions
Normal mode
NORMAL
UPS powers the load
Bypass mode
BYPASS
The load power supply is provided by the static bypass. This mode can be regarded
as a temporary transition mode between the normal mode and maintenance bypass
mode, or a temporary abnormal operating status.
Maintenance
Mode
MAINT
UPS shuts down, the load is connects to the mains through the Liebert MBC. In this
mode the load is not protected against abnormal input utility power.
As shown in SL-25651, the Liebert eXM Battery Cabinet manual, the AC utility source is supplied
through the input breaker, and the rectifier converts the alternating current into DC power. The
inverter converts the AC power from the utility—or DC power from an optional External Battery
Cabinet—into AC power for the load. The batteries power the load through the inverter in the event
of a power failure. The utility source can also power the load through the static bypass.
If maintenance or repair of the UPS is necessary, the load can be switched without interruption in
service using the optional Liebert MBC.
7.19
Static Bypass Switch
The circuit block labeled “Static Bypass” contains an electronically controlled switching circuit that
enables the critical load to be connected to either the inverter output or to a bypass power source via
the static bypass line. During normal system operation, the load is connected to the inverter and the
inverter contactor is closed; but in the event of a UPS overload or inverter failure, the load is
automatically transferred to the static bypass line.
To provide a clean (no-break) load transfer between the inverter output and static bypass line, the
static switch activates, connecting the load to bypass. To achieve this, the inverter output and bypass
supply must be fully synchronized during normal operating conditions. This is achieved through the
inverter control electronics, which make the inverter frequency track that of the static bypass supply,
provided that the bypass remains within an acceptable frequency window.
NOTE
When the UPS is operating in static bypass mode or on maintenance bypass, the connected
equipment is not protected from power failures or surges and sags.
73
Liebert® eXM™
Specifications and Technical Data
8.0
SPECIFICATIONS AND TECHNICAL DATA
8.1
Conformity and Standards
The Liebert eXM has been designed to conform to the following standards:
Safety
Surge
Harmonics
UL 1778, 4th Edition, CSA 22.2 107.3
IEC 61000-4-5 Criteria B
IEC 61000-3-4
Electrical Fast Transient
IEC 61000-4-4, Criteria B
ESD
IEC 61000-4-2, Criteria B
FCC
Part 15, Class A
Radiated Immunity
IEC 61000-4-3, Criteria A
Conducted Immunity
IEC 61000-4-6, Criteria A
Low-Frequency Signals
IEC 61000-2-2 Criteria A
Transportation
ISO
Misc
ISTA Procedure 1H
9001
OSHA, ASME, NEMA PE-1
The Liebert eXM has UL and c-UL approval.
8.1.1
ENERGY STAR® Certification
The Liebert eXM UPS is ENERGY STAR certified satisfying “ENERGY STAR Program Requirements
Product Specification for Uninterruptible Power Supplies (UPSs) - Eligibility Criteria, Version 1.0.”
8.2
UPS Environmental
The Liebert eXM is designed to operate under the following environmental conditions without
damage or degradation in electrical operating characteristics:
Table 23
Environmental requirements
Item
Requirements
Acoustical Noise, dBA, at 55 in. (1.4m)
60
Operating Altitude
3200ft. (1000m). (1% maximum kW de-rate per 100m rise
between 3200 and 9800 ft. [1000-3000 meters)
Relative Humidity
95%
Operating Temperature, °F (°C)
104 (40)
UPS Storage/Transport Temperature, °F (°C)
-4 to 158 (-20 to 70)
Table 24
UPS mechanical characteristics
120 - 200
Rated Power, kVA
Dimensions
W x D x H, in (mm)
34-2/3 x 39-3/8 x 78-3/4
(880 x 1000 x 2000)
Weights
See Table 1 for weights
Color
RAL 7021 (Black)
Protection Degree IEC (60529)
IP20
Liebert® eXM™
74
Specifications and Technical Data
8.3
UPS Electrical Characteristics
Refer to additional circuit breaker notes in 3.2.6 - Accessory Fuses and Back-Feed Breaker
Wiring.
NOTE
The breakers and cables used must be in accordance with NEC ANSI/NFPA 70. A disconnect
breaker must be provided for AC input, DC input and AC output. Recommended cable sizes are
suitable for operation at a maximum temperature of 104°F (40°C).
Table 25
UPS currents and terminals—Input, single-input unit, 208V operation
Unit
Rating
Nominal
Input Current
Maximum
Input Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, Total
Copper
Wire
Aluminum
Wire
120
356
409
600
M12
760
(2) 500
(3) 350
140
415
478
600
M12
760
(2) 500
(3) 350
160
475
546
700
M12
930
(3) 350
(3) 500
180
534
614
800
M12
1140
(3) 500
(4) 400
200
594
682
1000
M12
1240
(4) 350
(4) 500
Wire sized for operation at 40°C.
Table 26
UPS currents and terminals—Input, dual-input unit, 208V operation
Unit
Rating
Nominal
Input Current
Maximum
Input Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, Total
Copper
Wire
Aluminum
Wire
120
356
409
600
M12
760
(2) 500
(3) 350
140
415
478
600
M12
760
(2) 500
(3) 350
160
475
546
700
M12
930
(3) 350
(3) 500
180
534
614
800
M12
1140
(3) 500
(4) 400
200
594
682
1000
M12
1240
(4) 350
(4) 500
Wire sized for operation at 40°C.
Table 27
UPS currents and terminals—Bypass, dual-input unit, 208V operation
Unit
Rating
Nominal
Input Current
Maximum
Input Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, Total
Copper
Wire
Aluminum
Wire
120
333
333
450
M12
620
(2) 350
(2) 500
140
389
389
500
M12
620
(2) 350
(2) 500
160
444
444
600
M12
760
(2) 500
(3) 350
180
500
500
700
M12
930
(3) 350
(3) 500
200
555
555
700
M12
930
(3) 350
(3) 500
Wire sized for operation at 40°C.
Table 28
UPS currents and terminals—Output
Unit
Rating
Nominal
Input Current
Maximum
Input Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, Total
Copper
Wire
Aluminum
Wire
120
333
333
450
M12
620
(2) 350
(2) 500
140
389
389
500
M12
620
(2) 350
(2) 500
160
444
444
600
M12
760
(2) 500
(3) 350
180
500
500
700
M12
930
(3) 350
(3) 500
200
555
555
700
M12
930
(3) 350
(3) 500
Wire sized for operation at 40°C.
75
Liebert® eXM™
Specifications and Technical Data
Table 29
Specifications for customer-supplied external DC source for Liebert eXM UPS
Unit
Rating
Nominal
Input Current
Maximum
Input Current
OCP Device
Rating
Bolt Size
75°C Wire
Current, Total
Copper
Wire
120
140
160
180
200
448
522
597
672
746
560
653
746
840
933
600
680
800
900
1000
M12
M12
M12
M12
M12
760
930
1140
1240
1240
(2) 500
(3) 350
(3) 500
(4) 350
(4) 350
Wire sized for operation at 40°C.
A Liebert BIB is required for shunt trip of the Customer Supplied Breaker for the External DC Source. Refer to
SL-25651, available at Liebert’s Web site, www.liebert.com, for additional details.
Table 30
Rectifier input
120-200kVA
Parameter
AC Input Parameters
Rated AC Voltage
Input Voltage Range, Startup/Operating
50/60Hz, 3-Phase, 4-Wire Plus Ground
208/120V
220/127V
177-253VAC
187-264VAC
Input Voltage Range, Operating *
125-253VAC
Frequency
Power Factor
UPS Capacities (kVA)
Input Current (A), Rated
132-264VAC
50 or 60Hz (40-70Hz Range)
0.99 Full Load, 0.98 Half Load
120/140/160/180/200
120kVA UPS
140kVA UPS
160kVA UPS
180kVA UPS
200kVA UPS
356
416
475
534
594
337
393
449
505
562
120kVA UPS
140kVA UPS
160kVA UPS
180kVA UPS
200kVA UPS
409
478
546
614
682
387
452
516
581
645
Input Current (A), Max
THD
5% Full Load
* Derated operation for reduced input voltage: 208V Operation (125-177VAC), 220V Operation (132-187VAC).
Liebert® eXM™
76
Specifications and Technical Data
Table 31
Battery DC intermediate circuit
Parameter
120-200 kVA
Battery Bus Voltage
288
Number of Lead-Acid Cells
144 = (24 x 6 cell [12V] blocks), nominal
Float Voltage
2.25V/cell, selectable from 2.2 - 2.3V/cell
Temperature Compensation
-3.0mV/°C, selectable from 0 to -5.0mV/°C around 77°F (25°C) or 86°F (30°C) or inhibit
Ripple Voltage
≤1%
Ripple Current
≤5%
Boost Charge Voltage
2.35 V/cell (selectable from 2.30-2.40V/cell)
Boost Control
Float-boost current trigger 0.050 C10; selectable 0.030-0.070
Boost-float current trigger 0.010 C10; selectable 0.005-0.025
24 hour safety time-out; selectable 8-30 hr
Boost charge mode inhibit; selectable
End of Discharge
1.67 V/cell (selectable from 1.60-1.750V/cell)
Battery Charge
2.35 V/cell (selectable from 2.3-2.4V/cell)
Constant current and constant voltage charge mode
Programmable auto trigger or inhibit of boost mode
Battery Charging Power
Maximum Current
UPS, kVA: 120, 140, 160, 180, 200
Battery Charging Power, kW: 18, 21, 24, 27, 30
Maximum Charging Current, A: 54, 63, 72, 81, 90
Table 32
Inverter output to critical load
Parameter
120-200 kVA
Rated AC Voltage
208/120V or 220/127V, 50/60Hz, 3-Phase, 4-Wire Plus Ground
Frequency
50/60
Overload Capacity
110% load, 60 minutes
125% load, 10minutes
150% load, 60 seconds
Fault Current
Short circuit for 200 ms
Non-Linear Load Capability
100%
Neutral Current Capability
170%
Steady State Voltage Stability
±1% (balanced load)
Voltage Regulation
±1% for balanced load
±5% for 100% unbalanced load
Phase Balance
120° ±1° for balanced load
120° ±15°± for 100 unbalanced load
Transient Voltage Response
THD
<1.5% (0-100% linear load)
<4% (0-100% non-linear load)
Sync Frequency Range
Rated frequency ± 2Hz (selectable ± 0.5 to ± 3Hz)
Frequency Slew Rate
0.1-3Hz
Frequency Regulation
Less than ±0.25%
Voltage Adjustment Range
±5%
77
Liebert® eXM™
Specifications and Technical Data
Table 33
Bypass input
Parameter
120-200 kVA
Rated AC Voltage
208/120V or 220/127V, 50/60Hz, 3-Phase, 4-Wire Plus Ground
Rated Current, A: 208V
333/389/444/500/555
Rated Current, A: 220V
314/367/419/472/524
Overload
150% load, long term
Upstream Protection, Bypass Line
Thermomagnetic Circuit-Breaker, rated up to 125% of nominal output current
Current Rating of Neutral Cable, A
1.7*ln
Frequency, Hz
50 or 60
Transfer Time Between Bypass
and Inverter, ms
Uninterrupted Transfer: <1ms
Interrupted Transfer: <20ms (40,60,80,100, can be selected)
Bypass Voltage Tolerance, %VAC
Upper Limit: +10, +15 or +20, default +15
Lower Limit: -10, -20, -30 or -40; default: -20
(Delay to Accept Steady Bypass Voltage: 10 sec)
Bypass Frequency Tolerance, %
± 10% or ± 20%; default: ± 20%
Synchronization Window
± 0.5, 1,2,3Hz
Default Value: ±2Hz
Table 34
AC/AC efficiency, loss and air exchange
Data
AC/AC Efficiency
Normal Mode (dual conversion), %
95.5% Max
Inverter Efficiency (DC/AC) (Battery at nominal voltage 288 VDC and full-rated linear load)
Rated Power, kVA
120-200
Battery Mode, %
94.8% Max
Heat Losses and Air Exchange
Rated Power, kVA
120
140
160
180
200
Normal Mode, kW
6.6
7.7
8.8
9.9
11
No Load, kW
1.8
2.1
2.4
2.7
3
407 (691)
475 (806)
542 (922)
610 (1037)
678 (1152)
Maximum Forced Air Cooling
(Front Intake, Rear Exhaust), CFM (m3/hr)
Heat Dissipation, BTU/Hr (kW) 21,193 (6.21) 23,512 (6.89) 29,529 (8.65) 31,994 (9.37) 35,548 (10.42)
Liebert® eXM™
78
Specifications and Technical Data
Table 35
Recommended lug sizes (Compression Type) M12, 1/2" bolt
Cable Size
T&B Copper
Two-Hole
T&B Aluminum
Two-Hole
#6AWG
256-030695-868
—
#4AWG
256-030695-733
—
#2-3AWG
54811BE
—
#1AWG
54857BE
—
#1/0AWG
256-30695-593
—
#2/0AWG
54862BE
60238
#3/0AWG
54864BE
60244
#4/0AWG
54866BE
60250
250kcmil
54868BE
60256
300kcmil
54870BE
60262
350kcmil
54872BE
60267
400kcmil
54874BE
60269
500kcmil
54876BE
60273
600kcmil
54878BE
60275
700kcmil
54879BE
60277
750kcmil
54880BE
60278
79
Liebert® eXM™
Maintenance
9.0
MAINTENANCE
9.1
Safety Precautions
Observe the safety precautions in Important Safety Instructions on page 1.
Only properly trained and qualified personnel should perform maintenance on the UPS system.
Observe all of the warnings and cautions below before performing any maintenance on the UPS
system and associated equipment. Also observe the manufacturer’s safety precautions pertaining to
the battery, along with the battery safety precautions in this document.
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Only Emerson or Emerson-trained service personnel should work on this equipment. Both AC
and DC high voltages are present in lethal amounts within this equipment. Extreme care
should be taken when working around UPS equipment.
Always identify the source of connecting wiring prior to disconnecting. Mark any disconnected
wires, so they can be properly reconnected.
Do not substitute parts except as authorized by Emerson.
Maintain the UPS cabinets free of foreign materials such as solder, wire cuttings, etc.
Call Liebert Services if you are not sure of the procedures to follow or if you are not familiar
with the design or operation of the equipment.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
L’entretien et la réparation de cet équipement doivent être confiés exclusivement à un
personnel qualifié d’Emerson ou formé par Emerson. Des hautes tensions c.a. et c.c. mortelles
sont présentes dans cet équipement. Faites preuve d’une grande prudence lorsque vous
travaillez à proximité d’un système ASC.
Identifiez toujours la source d’un câble de raccordement avant de le débrancher. Identifiez les
câbles déconnectés afin de pouvoir les reconnecter correctement.
Ne remplacez aucun composant sans l’autorisation expresse d’Emerson.
Assurez-vous que les armoires d’ASC sont exemptes de matériaux étrangers tels que des
résidus de soudure, des bouts de câble, etc.
Communiquez avec Liebert Services si vous doutez de la procédure à suivre ou si la
conception ou le fonctionnement de l’équipement ne vous sont pas familiers.
Liebert® eXM™
80
Maintenance
! WARNING
Risk of electrical shock and arc flash. Can cause property damage, injury and death.
Extreme caution is required when performing maintenance.
Be constantly aware that the UPS system contains high DC as well as AC voltages. With
input power Off and the optional battery cabinet disconnected, high voltage at filter
capacitors and power circuits should be discharged within 30 seconds. However, if a power
circuit failure has occurred, you should assume that high voltage still exists after shutdown.
Check with a voltmeter before making contact.
AC voltage will remain on the bypass and output contactors and the static bypass switch,
unless the associated external circuit breakers are opened.
Check for voltage with both AC and DC voltmeters before making contact.
When the UPS system is under power, both the operator and any test equipment must be
isolated from direct contact with earth ground and the UPS chassis frame by using rubber
mats.
Some components within the cabinets are not connected to chassis ground.
Any contact between floating circuits and the chassis is a lethal shock hazard. Use differential
oscilloscopes when measuring a floating circuit. The differential input should have at least
800vrms common mode input rating and a common mode rejection ratio of at least 80 dB.
Exercise caution that the test instrument exterior does not make contact either physically or
electrically with earth ground.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers, or
others approved for use in electrical fire fighting.
! AVERTISSEMENT
Risque d’arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
Les opérations d’entretien requièrent une extrême prudence.
Soyez toujours conscient du fait que le système ASC contient des tensions c.c. et c.a. élevées.
Une fois l’alimentation d’entrée et du boîtier facultatif de batteries coupées, la haute tension
aux condensateurs de filtrage et aux circuits d’alimentation devrait se dissiper en moins de 30
secondes. En cas de défaillance d’un circuit d’alimentation, toutefois, il importe de présumer
qu’une tension élevée est présente même après l’arrêt. Vérifiez toujours les tensions avec un
voltmètre avant d’établir des contacts.
Les contacteurs de dérivation et de sortie, de même que le commutateur statique de
dérivation, continueront d’afficher une tension c.a. à moins que les disjoncteurs externes
associés ne soient ouverts.
Vérifiez les tensions avec des voltmètres c.a. et c.c. avant d’établir tout contact.
Lorsque le système ASC est sous tension, les responsables de l’entretien et l’équipement
d’essai doivent reposer sur des tapis de caoutchouc pour prévenir tout contact direct avec le
sol et avec le châssis du système lors des interventions.
Certains composants à l’intérieur des armoires ne sont pas connectés à la masse du châssis.
Tout contact entre les circuits flottants et le châssis présente un risque de décharge mortelle.
Utilisez des oscilloscopes différentiels lors des mesures d’un circuit flottant. L’entrée
différentielle devrait être d’au moins 800 Vrms en mode commun et avoir un taux de réjection
de mode commun d’au moins 80 dB.
Il importe de veiller à ce que l’extérieur des équipements d’essai n’entre pas en contact
physique ou électrique avec le sol.
En cas d’incendie associé à du matériel électrique, n’utilisez que des extincteurs à dioxyde de
carbone ou homologués pour la lutte contre les incendies d’origine électrique.
81
Liebert® eXM™
Maintenance
9.2
Limited-Life Components
The Liebert eXM UPS has a design life well in excess of 10 years. Well-maintained units can continue
to provide economic benefits for 20 years or more. Long-life components are used in the UPS wherever
practical and cost-effective. However, due to the currently available component material,
manufacturing technology limitations and the general function and use of the component, a few
components in your Liebert UPS will have a shorter life cycle and require replacement in less than 10
years.
The following components utilized in your UPS system have a limited life cycle and are specifically
exempt from warranty. To prevent a wear-out failure of one of these components affecting your
critical load operations, Liebert recommends these components be periodically inspected and replaced
before the expected expiration of their life cycle. The expected life of each component listed below is
simply an estimate and is not a guarantee. Individual users may have site-specific requirements,
maintenance and other environmental conditions that affect the length of the component’s useful life
cycle.
Table 36
Component service life
Component
Expected Life
Replace in:
Air filters
5 years
Check four times per year
In most cases, replacement components must exactly match the original component specifications.
These replacement components are not readily available from third-party component distributors.
For assistance with your specific component specifications, replacement component selection and
sourcing, call 1-800-LIEBERT. For customers using Emerson Network Power Liebert Services’
preventive maintenance services, periodic inspection of these components is part of this service, as
well as recommending component replacement intervals to customers to avoid unanticipated
interruptions in critical load operations.
9.3
Routine Maintenance
Become thoroughly familiar with the equipment, but at no time go beyond the specific procedures in
this manual while performing maintenance or correcting a malfunction. If you have any doubt as to
what must be done, call Emerson® Network Power Liebert Services at 1-800-LIEBERT for further
instructions. The UPS is designed for unattended operation, but does require some common sense
maintenance.
• Keep good records—Troubleshooting is easier if you maintain historical service records.
• Keep the UPS free of dust and any moisture.
• Keep the UPS cool:
• Battery systems must be kept in the range of 72-77°F (22-25°C) in order to meet design
specifications for capacity and longevity.
• The UPS will reliably meet all performance specifications at temperatures up to 104°F (40°C),
and can be slightly derated for operation at even higher temperatures. However, performance
and longevity will be optimized when the UPS is operated at the same temperature as the
batteries.
• Keep connections tight.
• Tighten all connections at installation and at least annually thereafter. (See 9.3.3 - Torque
Requirements).
9.3.1
Record Log
Set up a maintenance log to record scheduled checks and any abnormal conditions.
The log should have space for all metered data including phase readings, alarm messages, UPS mode
of operation, air filter replacement date and observation notes. A second log should be maintained for
the battery module as directed by the battery manufacturer.
Emerson recommends a periodic walk-through inspection of the UPS and battery rooms to check for
visible and audible indications of problems. Log the inspection, metered parameter indications and
any discrepancies.
Liebert® eXM™
82
Maintenance
9.3.2
Air Filters
The air filters must be inspected and serviced on a regular schedule. The period between inspections
will depend upon environmental conditions. Under normal conditions, the air filters will require
cleaning or replacement approximately every two months.
All Liebert eXM models have replaceable filter elements behind the grille in the front of the unit. This
element can be changed with the UPS operating by opening the outer door. The Liebert eXM’s air
filters are washable and reusable. Two sets of air filters are shipped with each Liebert eXM.
Abnormal or dusty conditions will require more frequent cleaning and replacement of air filters.
Inspect installations in new buildings more often, then extend the inspection period as experience
dictates.
Replacing Air Filters
Installing the two air filter sizes in a Liebert eXM requires only a Phillips screwdriver. Each filter is
held in place by a bracket on either side of each filter. Two sets of washable and reusable dust filters
are shipped with each UPS. Refer to 9.3.2 - Air Filters for details about filter maintenance.
To replace a filter:
1. Open the UPS front door and locate the filters on the back side of the front door (see Figure 42).
2. Remove one bracket and loosen the screw on the second bracket. The second bracket need not be
removed.
3. Remove the dust filter to be replaced.
4. Insert the clean filter.
5. Reinstall the bracket, tightening the screw securely.
6. Tighten the screw on the second bracket.
Figure 42 Air filter replacement
Replaceable
Air Filter
Control
Panel
Replaceable
Air Filter
FRONT
Door Open
83
Liebert® eXM™
Maintenance
9.3.3
Torque Requirements
All electrical connections must be tight.
Tables 37 through 38 provide the torque values for the connections in the UPS and batteries. Use
these values unless the equipment is labeled otherwise.
Table 37
Busbars (for power wiring)
Bolt Shaft Size
Lb-in (Nm)
1/2" (M12)
428 (48)
Table 38
Terminal block with compression lugs (for control wiring)
AWG Wire Size
or Range
#22 - #14
9.4
Lb-in (Nm)
3.5 to 5.3
(0.4 to 0.6)
Detecting Trouble
It is important that the operator check the instrument readings if abnormal equipment performance
is suspected. Any metered value that differs appreciably from normal could mean an impending
malfunction, and should be investigated.
Items to check on the various UPS display screens include:
1. Output voltage of all phases should be within 2% of normal voltage. Output currents on each
phase should not normally differ by more than 20%. If a greater difference is noted, the load is
unbalanced and corrective action should be taken to redistribute the load, if possible.
2. If the UPS has not operated on battery power during the last 10 hours, the batteries should
require little charging current. Battery mimic should indicate normal DC voltage with relatively
little battery charge current.
3. Input current on each phase should be within 10% of the average input current. Alarm messages
indicate malfunction or impending malfunction. A daily check of the Operator Control Panel will
help to provide an early detection of problems. Refer to Appendix B - - UPS Status Messages
to interpret alarm messages.
4. Tracing a problem to a particular section is facilitated by alarm messages and the metered
parameter indications. These are stored in the Status Reports and can be displayed at the
Operator Control Panel or at an optional terminal.
NOTE
If the UPS system has a blown fuse, the cause should be determined before you replace the fuse.
Contact Liebert Global Services.
9.5
Reporting a Problem
If a problem occurs within the UPS, review all alarm messages along with other pertinent data. This
information should be given to the Liebert Service dispatcher. Call 1-800-LIEBERT to report a
problem or to request assistance.
9.6
Corrective Actions
Recommended corrective actions for each alarm message on the Operator Control Panel and the
Remote Alarm Status Panel may be found in Appendix B - - UPS Status Messages.
Liebert® eXM™
84
Maintenance
9.7
Recommended Test Equipment
Table 39 lists recommended test equipment and tools required to maintain, troubleshoot and repair
the UPS module. Instruments of equivalent range and accuracy may be substituted. All instruments
should be calibrated and be within the current calibration cycle. Calibration data for the instruments
should be maintained in equipment-history files and the instruments labeled for audit and
verification.
Table 39
Qty
Recommended test equipment and tools
Test Equipment
Manufacturer
Model or Type
1
Oscilloscope
Tektronix, H-P or Fluke
DC to 50 MHz
2
Voltage Probes
Tektronix, H-P or Fluke
10X, with 10 ft. Cable
2
Voltage Probes
Tektronix, H-P or Fluke
100X, with 10 ft. Cable
1
Digital Multi-meter
Fluke
8060, with Test Leads
1
Tool Kit
N/A
Standard electrical contractor tools
85
Liebert® eXM™
Hazardous Substances or Elements Announcement
APPENDIX A - HAZARDOUS SUBSTANCES OR ELEMENTS ANNOUNCEMENT
Table 40
Hazardous substances or elements
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Chrome
(Cr6+)
Polybrominated
Biphenyl
(PBB)
Polybrominated
Diphenyl Ethers
(PBDE)
Hex copper stud
X
✔
✔
✔
✔
✔
PCBA
X
✔
✔
✔
✔
✔
AC capacitor
X
✔
✔
✔
✔
✔
DC capacitor
X
✔
✔
✔
✔
✔
Fan
X
✔
✔
✔
✔
✔
Cables
X
✔
✔
✔
✔
✔
LCD
X
X
✔
✔
✔
✔
Sensors
X
✔
✔
✔
✔
✔
Large-medium power magnetic
components
X
✔
✔
✔
✔
✔
Circuit breaker / rotating switch
X
✔
✔
✔
✔
✔
Semiconductors
X
✔
✔
✔
✔
✔
Battery (when applicable)
X
✔
✔
✔
✔
✔
Insulation monitoring device (when
applicable)
X
✔
✔
✔
✔
X
Part Name
✔ - Means the content of the hazardous substances in all the average quality materials of the part is within the limits specified in SJ/T11363-2006
X - Means the content of the hazardous substances in at least one of the average quality materials of the part is outside the limits specified
in SJ/T11363-2006
Emerson Network Power Co., Ltd. has been committed to the design and manufacturing of environment-friendly products. It will reduce and
eventually eliminate the hazardous substances in the products through unremitting efforts in research. However, limited by the current
technical level, the following parts still contain hazardous substances due to the lack of reliable substitute or mature solution:
1. All solders in the products contain lead.
2. Copper alloy contains lead.
3. Backlight bulb contains mercury.
4. The ceramic materials of the ceramic capacitor, the copper terminals and copper leads of metallic film capacity contain lead.
5. The glass of resistor contains lead.
6. The glass of LCD contains lead, and the backlight lamp contains mercury.
7. The lead in the battery is determined by the battery feature and technical levels.
8. The insulation monitoring device contains lead and PBDE.
About Environment Protection Period: The Environment Protection Period of the product is marked on the product. Under normal working
conditions and normal use of the products observing relevant safety precautions, the hazardous substances in the product will not
seriously affect the environment, human safety or property in the Environment Protection Period starting from the manufacturing date.
About battery: The battery life is dependent on the ambient temperature and charging / discharging times. The battery life will be shortened
if the battery is used under high temperature or in deep discharging status. Refer to the manufacturer’s product literature for details.
Liebert® eXM™
86
UPS Status Messages
APPENDIX B - UPS STATUS MESSAGES
Table 41 shows all event messages as they appear in the current status area of the LCD or the
history log, along with a description and recommended actions, if any. For further information on the
current status area and the history log, see 6.10 - UPS History Log.
Table 41
UPS status messages
Event Message
Description / Suggested Action (if any)
Comm. Fail
The CAN communication between internal monitor and rectifier/inverter/bypass fails. Contact
Liebert Services at 800-543-2378 for assistance.
Battery Overtemp
The battery temperature is over the limit. Check the battery temperature and ventilation.
Ambient Overtemp
The Ambient temperature is over limit. Check the ventilation of UPS room.
Replace Battery
Battery should be replaced. Contact Liebert Services at 800-543-2378 for assistance.
Battery Low Pre-warning
Before the end of discharging, battery under-voltage pre-warning should occur. After this prewarning, battery should have the capacity for 3 minutes discharging with full load. The time is
user configured from 3 to 60 minutes.
Shut down the load in time.
Battery End of Discharge
Inverter turned off due to low battery voltage.
Check the utility failure and try to fix it.
Mains Volt. Abnormal
Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown.
Check the input line-to-neutral voltage amplitude of rectifier.
Mains Undervoltage
Mains Voltage is undervoltage (120v~132V).
Check the input line-to-line voltage amplitude of rectifier.
Mains Freq. Abnormal
Mains frequency is out of limit range and results in rectifier shutdown.
Check the rectifier’s input voltage frequency.
Rectifier Fault
Rectifier Fault; Contact Liebert Services at 800-543-2378 for assistance.
Rectifier Overtemp
The temperature of heat sink is too high to keep the rectifier running.
The UPS can recover automatically. Check the environment and ventilation.
Charger Fault
The Charger has failed. Contact Liebert Services at 800-543-2378 for assistance.
Input Fuse Fail
Input fuse is open. Contact Liebert Services at 800-543-2378 for assistance.
Control Power 1 Fail
Control Power 1 has failed or has been lost. Contact Liebert Services at 800-543-2378 for
assistance.
Mains Phase Reversed
Input phase sequence is reversed. Contact Liebert Services at 800-543-2378 for assistance.
Soft Start Fail
Rectifier could not start due to low DC bus voltage. Contact Liebert Services at 800-543-2378 for
assistance.
Bypass Unable to Trace
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage is beyond the normal range.
The amplitude threshold is fixed for positive and negative 10% rating.
This alarm automatically resets once the bypass voltage goes normal.
1. First verify that the bypass voltage and frequency displayed on the panel is within the selected
range. Note here the rated voltage and frequency are specified by “Output voltage level” and
“Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external supply if it is found to be faulty.
Contact Liebert Services at 800-543-2378 for assistance.
Bypass Abnormal
This alarm is triggered by an inverter software routine when the amplitude or frequency of bypass
voltage exceeds the limit.
This alarm automatically resets once the bypass voltage goes normal.
First check if there are some relevant alarms such as “Bypass disconnect open”, “Bypass phase
reverse” and “Mains neutral lost”. If they appear, solve them first.
1. Then verify that the bypass voltage and frequency displayed on the panel is within the bypass
limit. Note here the rated voltage and frequency are specified by “Output voltage level” and
“Output frequency level” respectively.
2. If the displayed voltage is believed to be abnormal, then verify the bypass voltage and
frequency presented to the UPS. Check the external bypass supply if it is found to be faulty. If
the utility is likely to trigger this alarm frequently, the bypass limit can be changed a little larger
through the configuration software according to the customer’s agreement.
Contact Liebert Services at 800-543-2378 for assistance.
87
Liebert® eXM™
UPS Status Messages
Table 41
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
Inverter Asynchronous
This alarm is triggered by an inverter software routine when the inverter and bypass waveforms
are misaligned by more than 6 degrees in phase. This alarm resets automatically once the
condition is no longer true.
1. First check if the alarm “Bypass unable to trace” or “Bypass abnormal” occurs. If so, solve it
first.
2. Verify the waveform of the bypass voltage. If it is too distorted, ask the customer to verify and
seek any possible measurements.
Contact Liebert Services at 800-543-2378 for assistance.
Inverter Fault
This alarm indicates a fault condition exists within the inverter.
Contact Liebert Services at 800-543-2378 for assistance.
Fan Fault
At least one of the cooling fans failed. Contact Liebert Services at 800-543-2378 for assistance.
Inverter STS (relay) Fail
At least one of the static switches of inverter side is open or short circuit. This fault is locked until
power off. Contact Liebert Services for assistance at 800-543-2378 for assistance.
Bypass STS Fail
At least one of the static switches of bypass side is open or short circuit. This fault is locked until
power off.
Contact Liebert Services at 800-543-2378 for assistance.
Output Fuse Fail
At least one of the output fuses is open. Contact Liebert Services at 800-543-2378 for assistance.
Control Power 2 Fail
Control Power 2 is abnormal or lost. Contact Liebert Services at 800-543-2378 for assistance.
Unit Overload
The UPS is confirmed to be overload when the load arises above 105% nominal rating.
The alarm automatically resets once the overload condition is removed.
1. Confirm that the alarm is true by checking the load percent indicated on the LCD panel to
determine which phase is being overloaded.
2. If the alarm is true, measure the actual output current to verify that the indications are valid.
Disconnect unnecessary load and ensure the safety. In a parallel system, a severe load
sharing error can also leads to the alarm.
Contact Liebert Services at 800-543-2378 for assistance.
System Overload
The UPS parallel system is confirmed to overload when the total load arises above 105% nominal
rating for the set basic number of UPSs. The alarm automatically resets once the overload
condition is removed.
1. Confirm that the alarm is true by checking the system load percent indicated on the LCD
panel to determine which phase is being overloaded.
2. If the alarm is true, measure the actual output current to verify that the indications are valid.
Disconnect unnecessary load and ensure the safety. In a parallel system, a severe load
sharing error can also leads to the alarm.
Unit Overload Timeout
The UPS is confirmed to overload and the overload times out.
Note 1: The highest loaded phase will indicate overload timing-out first.
Note 2: When the timer is active, then alarm “unit overload” should also be active as the load is
above nominal.
Note 3: When the timer has expired, the inverter Static Switch is opened and the load transferred
to bypass. The inverter shutdown and will restart after 10 seconds.
Note 4: If the load decreases lower than 95% after 5 minutes, the system will transfer back to
inverter mode.
Confirm that the alarm is genuine by checking the load percent indicated on the LCD. If an
overload is indicated then check the load, and investigate any additional load connected prior to
the alarm (if applicable).
Bypass Phase Reversed
The phase sequence direction of bypass voltage is reversed.
Normally, the phase of Phase B lags 120 degrees behind Phase A, and the phase of Phase C
lags 120 degrees behind Phase B.
Verify that the phase rotation of the bypass supply presented to the UPS is correct, and rectify it if
it is found to be in error. Contact Liebert Services at 800-543-2378 for assistance.
Load Impact Transfer
A transfer to bypass occurred due to a large step load. The UPS should recover automatically.
Turn on connected equipment in sequential order to reduce the step loading of the inverter.
Transfer Timeout
The load is on bypass power due to excessive number of transfers that occurred within the last
hour.
The UPS will recover automatically and will transfer the load back to inverter power within an
hour.
Load Sharing Fault
UPS working within a parallel system are not sharing load current correctly. Contact Liebert
Services at 800-543-2378 for assistance.
Liebert® eXM™
88
UPS Status Messages
Table 41
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
DC Bus Abnormal
Shut off inverter due to abnormal DC bus voltage.
Contact Liebert Services at 800-543-2378 for assistance.
System Transfer
The whole paralleled UPS system transferred to bypass at the same time. This message will
appear on the UPS which passive transfer to bypass.
DC Bus Overvoltage
Rectifier, inverter and battery converter were shutdown because DC bus voltage is too high.
Check whether there is a fault in rectifier side. If no, then check whether overload occurs.
Restart the inverter after resetting the fault. If fault does not clear, contact Liebert Services at 800543-2378 for assistance.
LBS Active
The LBS setting is active. The UPS is acting as an LBS master or slave in a dual bus
configuration.
Battery ground fault
Battery ground fault from dry contact signal. Contact Liebert Services at 800-543-2378 for
assistance.
Inverter turned On
manually
Manual Turn On via front panel
Inverter turned Off
manually
Manual Turn Off via front panel
EPO
Emergency Power Off
Transfer Confirm
Interrupted Transfer Confirm
Transfer Cancel
Interrupted Transfer is cancel
Unit Off Confirm
Unit Turned Off Confirm
System Off Confirm
System Turned Off Confirm
Fault Reset
Fault Reset
Alarm Silence
Alarm Silence
Turn On Fail
Turn On Fail
Alarm Reset
Audible Alarm Reset
Bypass Mode
UPS in Bypass Mode
Normal Mode
UPS in Normal Mode
Battery Mode
UPS in Battery Mode
Output Disabled
UPS Output Disabled
Maint. Disconnect Closed
Maintenance Disconnect Closed
Reserved
—
Output Disconnect Open
Output Disconnect Open
Battery Reverse
Connect the battery again and check the wiring of batteries.
No Battery
Check the battery and the wiring of batteries.
Auto start
After UPS was shutdown at EOD, inverter auto starts when utility is restored.
BCB closed
BCB closed from dry contact signal.
BCB open
BCB open from dry contact signal.
Battery Float Charging
Battery is float charging.
Battery Boost Charging
Battery is boost charging.
Battery Discharging
Battery is discharging.
Battery Period Testing
Battery is period self-testing.
Batt. Capacity Testing
Battery is capacity self-testing.
Batt. Maint. Testing
Battery is maintenance self-testing.
Inverter in Setting
Inverter is in parameter setting.
Rectifier in Setting
Rectifier is in parameter setting.
Batt. Converter Fault
Battery converter output voltage beyond limits or battery fuse failed. Battery converter shuts
down. Battery backup not available.
Operation Invalid
This record is registered following an incorrect operation.
89
Liebert® eXM™
UPS Status Messages
Table 41
UPS status messages (continued)
Event Message
Description / Suggested Action (if any)
Byp. Abnormal Shutdown
Both bypass and inverter voltages unavailable. Load interruption.
Mains Neutral Lost
AC Input mains reference neutral not detected.
Battery Room Alarm
Environment in battery room needs attention.
Rec Flash Update
Rectifier firmware is being updated.
Inv Flash Update
Inverter firmware is being updated.
Monitor Flash Update
Monitor firmware is being updated.
LBS abnormal
LBS is abnormal.
Liebert® eXM™
90
Technical Support / Service
Web Site
www.liebert.com
Monitoring
[email protected]
800-222-5877
Outside North America: +00800 1155 4499
Single-Phase UPS & Server Cabinets
[email protected]
800-222-5877
Outside North America: +00800 1155 4499
Three-Phase UPS & Power Systems
800-543-2378
Outside North America: 614-841-6598
Environmental Systems
800-543-2778
Outside the United States: 614-888-0246
Locations
While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2014 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks
or registered trademarks of their respective owners.
SL-26100_REV1_09-15
Emerson Network Power
Liebert
www.emerson.com
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
Fax: +39 049 5841 257
Asia
29/F, The Orient Square Building
F. Ortigas Jr. Road, Ortigas Center
Pasig City 1605
Philippines
+63 2 687 6615
Fax: +63 2 730 9572